2(x+y)²-9(x+y)-5 resolve into fractot
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Step-by-step explanation:
(x+y)²= x²+2xy+y²
2(x+y)²= 2x²+4xy+2y²
-9(x+y)=-9x-9y
2x²+4xy+2y²-9x-9y-5
hope that it'll help you
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