Math, asked by ss880021pazm9e, 1 year ago

factorise: 4(x-y) square-12(x-y)(x+y)+9(x+y)square

Answers

Answered by mysticd
4
Solution :

4(x-y)² -12(x-y)(x+y) + 9(x+y)²

= [2(x-y)]² - 2×2(x-y)×3(x+y) + [3(x+y)]²

= [2(x-y)-3(x+y)]²

= ( 2x-2y-3x-3y )²

= ( -x-5y )²

= ( x+5y )²

= ( x + 5y )( x + 5y )

••••

ss880021pazm9e: but the answer given is (x+5y)square
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