Subtract 2xy-x²-y² from 3x²-2y²-xy
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Answer:
4x^2-y^2-3xy
Step-by-step explanation:
(3x^2-2y^2-xy)-(2xy-x^2-y^2)
= 3x^2-2y^2-xy+x^2+y^2-2xy
= 4x^2-y^2-3xy
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