factorise 3xsquare-9x-12
Answers
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Step-by-step explanation:
Factor
3
out of
3
x
2
.
3
(
x
2
)
−
9
x
−
12
Factor
3
out of
−
9
x
.
3
(
x
2
)
+
3
(
−
3
x
)
−
12
Factor
3
out of
−
12
.
3
x
2
+
3
(
−
3
x
)
+
3
⋅
−
4
Factor
3
out of
3
x
2
+
3
(
−
3
x
)
.
3
(
x
2
−
3
x
)
+
3
⋅
−
4
Factor
3
out of
3
(
x
2
−
3
x
)
+
3
⋅
−
4
.
3
(
x
2
−
3
x
−
4
)
Factor.
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3
(
x
−
4
)(x+1)
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