subtract:x2-3xy+7y2-2 from 6xy-4x2-y2+5
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Answer:
6xy-4x^2-y^2+5-(x^2-3xy+7y^2-2
=> 6xy-4xy^2-y^2+5-x^2+3xy-7y^2+2
=> 6xy+3xy-4xy^2-y^2-7y^2+5+2
=> 9xy-4xy^2-8y^2+7
=> -4xy^2-8y^2+9xy+7
=> 4xy^2+8y^2-9xy-7
Hope it helps you..
Step-by-step explanation:
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