Math, asked by anshhanji, 6 months ago

Show that (3x+7)^2 - 84x = (3x-7)^2

Answers

Answered by vishakha0987

8

Step-by-step explanation:

LHS = (3x + 7) - 84x = (3x)2 +2(3x)(7) + (7)2 - 84x = 9x2 + 42x + 49 - 84x = 9x2 + (42 - 84) x + 49 = 9x2 -42x + 49 RHS = (3x - 7)2 = (3x)2 ...

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