Polynomial Equations
PSAT · Flashcards · Application
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QUESTION
What is the factored form of
x
2
−
9
x^2-9
x
2
−
9
?
QUESTION
Evaluate
P
(
2
)
P(2)
P
(
2
)
for
P
(
x
)
=
x
3
−
4
x
P(x)=x^3-4x
P
(
x
)
=
x
3
−
4
x
: what is
P
(
2
)
P(2)
P
(
2
)
?
QUESTION
What is the sum of the roots of
x
2
−
7
x
+
10
=
0
x^2-7x+10=0
x
2
−
7
x
+
10
=
0
?
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ANSWER
7
7
7
. For
a
x
2
+
b
x
+
c
=
0
ax^2+bx+c=0
a
x
2
+
b
x
+
c
=
0
, sum of roots equals
−
b
a
-\frac{b}{a}
−
a
b
.
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