Question

prove that (2x+3y)2 -24xy = (2x-3y) 2​

Answer 1

( 2x + 3y )² - 24xy = ( 2x - 3y )²

4x² + 12xy + 9y² - 24xy = 4x² - 12xy + 9y²

4x² - 4x² - 12xy = -12xy + 9y² - 9y²

-12xy = -12xy

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