化简2x^2y-2xy+3y^2-(5x^2y+3xy-1)的结果是_____.

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化简2x^2y-2xy+3y^2-(5x^2y+3xy-1)的结果是_____.化简2x^2y-2xy+3y^2-(5x^2y+3xy-1)的结果是_____.化简2x^2y-2xy+3y^2-(5x

化简2x^2y-2xy+3y^2-(5x^2y+3xy-1)的结果是_____.
化简2x^2y-2xy+3y^2-(5x^2y+3xy-1)的结果是_____.

化简2x^2y-2xy+3y^2-(5x^2y+3xy-1)的结果是_____.
去括号,合并同同类项.
2x^2y-2xy+3y^2-(5x^2y+3xy-1)
=2x^2y-2xy+3y^2-5x^2y-3xy+1
=-3X^2Y-5XY+3Y^2+1.