(x+y)sqaure-(x-y) square factorise the expression
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Answer:4xy
Step-by-step explanation:
(x+y)²-(x-y)²
=x²+y²+2xy-(x²+y²-2xy)
=x²+y²+2xy-x²-y²+2xy
=4xy
Step-by-step explanation:
(x+y)²-(x-y)²
=x²+y²+2xy-(x²+y²-2xy)
=x²+y²+2xy-x²-y²+2xy
=4xy
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