Prove that:- A) (3x + 7)square – 42x = 9x square + 49.B) (2x + 5 ) – InterviewSolution

1.	Prove that:- A) (3x + 7)square – 42x = 9x square + 49.B) (2x + 5 )square – (2x – 5 )square = 40x
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