Rewrite the equation by completing the square.
x^{2}+16x+63 = 0x
2
+16x+63=0
Answers
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Step-by-step explanation:
Explanation:
In general:
(
x
−
a
)
(
x
−
b
)
=
x
2
−
(
a
+
b
)
+
a
b
We find
63
=
7
×
9
and
16
=
7
+
9
, so:
x
2
−
16
x
+
63
=
(
x
−
7
)
(
x
−
9
)
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