Factor Quadratics to Find Zeros
Algebra · Flashcards · Recall
ALGEBRA · FLASHCARDS
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QUESTION
What is the standard factored form of a quadratic with zeros
r
r
r
and
s
s
s
and leading coefficient
a
a
a
?
QUESTION
What is the zero (with multiplicity) of
f
(
x
)
=
(
x
−
3
)
2
f(x)=(x-3)^2
f
(
x
)
=
(
x
−
3
)
2
?
QUESTION
What is the relationship between factors and zeros for
f
(
x
)
=
(
x
−
r
)
(
x
−
s
)
f(x)=(x-r)(x-s)
f
(
x
)
=
(
x
−
r
)
(
x
−
s
)
?
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ANSWER
Zeros are
x
=
r
x=r
x
=
r
and
x
=
s
x=s
x
=
s
. When
(
x
−
r
)
=
0
(x-r)=0
(
x
−
r
)
=
0
then
x
=
r
x=r
x
=
r
, and when
(
x
−
s
)
=
0
(x-s)=0
(
x
−
s
)
=
0
then
x
=
s
x=s
x
=
s
.
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