Using FOIL - Math
Card 1 of 48
Solve the equation for
.

Solve the equation for .
Tap to reveal answer

Cross multiply.


Set the equation equal to zero.

Factor to find the roots of the polynomial.
and 



Cross multiply.
Set the equation equal to zero.
Factor to find the roots of the polynomial.
and
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.

Multiply terms by way of FOIL method.

Now multiply and simplify.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.
Multiply terms by way of FOIL method.
Now multiply and simplify.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.

Multiply terms by way of FOIL method.

Now multiply and simplify.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.
Multiply terms by way of FOIL method.
Now multiply and simplify.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.

Multiply terms by way of FOIL method.

Now multiply and simplify, paying attention to signs.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.
Now multiply and simplify, paying attention to signs.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.

Now multiply and simplify, paying attention to signs.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.
Now multiply and simplify, paying attention to signs.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.

Multiply terms by way of FOIL method.

Now multiply and simplify, paying attention to signs.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.
Now multiply and simplify, paying attention to signs.
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FOIL
.
FOIL .
Tap to reveal answer
Remember FOIL stands for First Outer Inner Last. That means we can take
and turn it into
.
Simplify to get
.
Remember FOIL stands for First Outer Inner Last. That means we can take and turn it into
.
Simplify to get .
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FOIL
.
FOIL .
Tap to reveal answer
is the same thing as
.
Remember that FOIL stands for First Outer Inner Last.
For this problem, that would be
.
Simplify that to
.
is the same thing as
.
Remember that FOIL stands for First Outer Inner Last.
For this problem, that would be .
Simplify that to .
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FOIL
.
FOIL .
Tap to reveal answer
Remember FOIL stands for First Outer Inner Last.

Combine like terms to get
.
Remember FOIL stands for First Outer Inner Last.
Combine like terms to get .
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FOIL
.
FOIL .
Tap to reveal answer
Remember that FOIL stands for First Outer Inner Last.
For this problem that would give us:


Simplify:

Remember that FOIL stands for First Outer Inner Last.
For this problem that would give us:
Simplify:
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FOIL
.
FOIL .
Tap to reveal answer
Remember that FOIL stands for First Outer Inner Last.
For this problem that would give us:


Simplify.

Remember that FOIL stands for First Outer Inner Last.
For this problem that would give us:
Simplify.
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Expand
.
Expand .
Tap to reveal answer
To solve our given equation, we need to use FOIL (First, Outer, Inner, Last).

Combine like terms.

To solve our given equation, we need to use FOIL (First, Outer, Inner, Last).
Combine like terms.
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Solve the equation for
.

Solve the equation for .
Tap to reveal answer

Cross multiply.


Set the equation equal to zero.

Factor to find the roots of the polynomial.
and 



Cross multiply.
Set the equation equal to zero.
Factor to find the roots of the polynomial.
and
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.

Multiply terms by way of FOIL method.

Now multiply and simplify.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.
Multiply terms by way of FOIL method.
Now multiply and simplify.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.

Multiply terms by way of FOIL method.

Now multiply and simplify.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms.
Multiply terms by way of FOIL method.
Now multiply and simplify.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.

Multiply terms by way of FOIL method.

Now multiply and simplify, paying attention to signs.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.
Now multiply and simplify, paying attention to signs.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.

Now multiply and simplify, paying attention to signs.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.
Now multiply and simplify, paying attention to signs.
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Evaluate 
Evaluate
Tap to reveal answer
In order to evaluate
one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.

Multiply terms by way of FOIL method.

Now multiply and simplify, paying attention to signs.


In order to evaluate one needs to multiply the expression by itself using the laws of FOIL. In the foil method, one multiplies in the following order: first terms, outer terms, inner terms, and last terms. Be sure to pay attention to signs.
Multiply terms by way of FOIL method.
Now multiply and simplify, paying attention to signs.
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FOIL
.
FOIL .
Tap to reveal answer
Remember FOIL stands for First Outer Inner Last. That means we can take
and turn it into
.
Simplify to get
.
Remember FOIL stands for First Outer Inner Last. That means we can take and turn it into
.
Simplify to get .
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FOIL
.
FOIL .
Tap to reveal answer
is the same thing as
.
Remember that FOIL stands for First Outer Inner Last.
For this problem, that would be
.
Simplify that to
.
is the same thing as
.
Remember that FOIL stands for First Outer Inner Last.
For this problem, that would be .
Simplify that to .
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