7) factorise : 3(x)2 + 3x. - 2.
Answers
Answered by
1
Answer:
3x
3
−x
2 −3x+1
=3x
3
−3x−x
2
+1
=3x(x
2
−1)−(x
2
−1)
=(x
2
−1)(3x−1)
=(x+1)(x−1)(3x−1)
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