Factorise the following 9y² - 12 + 4
Answers
Answered by
0
Answer:
Enter a problem...
Algebra Examples
Popular Problems Algebra Factor 9y^2-12y+4
9
y
2
−
12
y
+
4
Rewrite
9
y
2
as
(
3
y
)
2
.
(
3
y
)
2
−
12
y
+
4
Rewrite
4
as
2
2
.
(
3
y
)
2
−
12
y
+
2
2
Check the middle term by multiplying
2
a
b
and compare this result with the middle term in the original expression.
2
a
b
=
2
⋅
(
3
y
)
⋅
−
2
Simplify.
2
a
b
=
−
12
y
Factor using the perfect square trinomial rule
a
2
−
2
a
b
+
b
2
=
(
a
−
b
)
2
, where
a
=
3
y
and
b
=
−
2
.
(
3
y
−
2
) 2
Similar questions