Math, asked by uddhav92, 5 months ago

(3x plus 7)² = (3x-7)² plus 84x

Answers

Answered by fatmazoha2003

0

Answer:

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

(9x^2+49+42x)=(9x^2+49-42x) +84x

42x+42x=84x

84x=84x

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