Radicals

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Math › Radicals

Questions 1 - 10
1

Simplify:

Explanation

When multiplying radicals, simply multiply the numbers inside the radical with each other. Therefore:

We cannot further simplify because both of the numbers multiplied with each other were prime numbers.

2

Solve for .

Explanation

To get rid of the radical, we square both sides.

3

The answer is not present

Explanation

We can only combine radicals that are similar or that have the same radicand (number under the square root).

Combine like radicals:

We cannot add further.

Note that when adding radicals there is a 1 understood to be in front of the radical similar to how a whole number is understood to be "over 1".

4

Solve the equation:

Explanation

Multiply by negative three on both sides.

Square both sides.

Add three on both sides.

Divide by negative seven on both sides.

The answer is:

5

Solve:

Explanation

Square both sides in order to eliminate the radical.

Add 5 on both sides.

Divide by negative two on both sides.

Reduce both fractions.

The answer is:

6

Solve the equation:

Explanation

Cube both sides of the equation.

This will eliminate the radical on the left side.

Divide by three on both sides. This is similar to multiplying one-third on both sides.

The answer is:

7

Solve the equation:

Explanation

Subtract eight from both sides.

Raise both sides by the power of four.

Divide both sides by three.

The answer is:

8

Solve the equation:

Explanation

Subtract six from both sides.

Simplify both sides.

Cube both sides to eliminate the cube root.

Divide by three on both sides.

The answer is:

9

Solve the equation:

Explanation

Add 7 on both sides.

Square both sides.

Simplify both sides of the equation.

Add 2 on both sides.

Divide by nine on both sides.

Reduce both fractions.

The answer is:

10

Solve the equation:

Explanation

Add three on both sides.

Divide by 8 on both sides.

The answer is:

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