Solve Quadratics by Multiple Methods
Algebra 2 · Flashcards
ALGEBRA 2 · FLASHCARDS
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QUESTION
Solve using the quadratic formula:
x
2
+
2
x
+
5
=
0
x^2+2x+5=0
x
2
+
2
x
+
5
=
0
.
QUESTION
Solve using the quadratic formula:
x
2
+
4
x
+
1
=
0
x^2+4x+1=0
x
2
+
4
x
+
1
=
0
.
QUESTION
Factor and solve
x
2
+
7
x
+
12
=
0
x^2+7x+12=0
x
2
+
7
x
+
12
=
0
.
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ANSWER
x
=
−
3
x=-3
x
=
−
3
or
x
=
−
4
x=-4
x
=
−
4
. Factor:
(
x
+
3
)
(
x
+
4
)
=
0
(x+3)(x+4)=0
(
x
+
3
)
(
x
+
4
)
=
0
, then use zero-product property.
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