Math, asked by ayushviajayjha2008, 4 months ago

Prove that:- A) (3x + 7)square

– 42x = 9x square + 49.

B) (2x + 5 )square

– (2x – 5 )square

= 40x

Answers

Answered by nandanipaul123

1

Step-by-step explanation:

$answer$

$true$

Answered by sarojchoudhary1978

0

Answer:

(3x+7)^2-42x=9x^2+42x+49-42x=9x^2+49 proved

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