what must be subtracted from 2x²-xy+5y² to get 5x²-3xy-2y²
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7x^2+2xy-3y^2Step- by-step explanation:a-b=ca-c=b2x² - xy - 5y²-(- 5x² - 3xy - 2y²)=7x^2+2xy-3y^2.
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