Math, asked by MannatArora1421, 1 year ago

simplify the following : ( 3x + 7y )^2 - ( 3x - 7y )^2

Answers

Answered by Anonymous

56

(a+b)^2 -(a-b)^2
=4ab
=4 ×3x × 7y
=84xy

Answered by saumyasinha

92

hope it will help u......

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