9x^2 - y^2 + 4y -4 factorize
Answers
Answered by
0
Step-by-step explanation:
Since both terms are perfect squares, factor using the difference of squares formula,
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
where
a
=
3
x
and
b
=
y
−
2
.
(
3
x
+
y
−
2
)
(
3
x
−
y
+
2
)
.
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