2-max + 4 is a perfect square trinomial, then m=If 9x – InterviewSolution

1.

2-max + 4 is a perfect square trinomial, then m=If 9x

Answer»

9x² - mx + 4

(3x)² - mx + 4

For perfect square, we should get a form of (ax-b)²

So, in that case,(3x - 2)² = 9x² - 12m + 4So, m = 12

option (c) is correct

thanks for the answer

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