作业帮x^2y-2x^2y^3-3x^3y等于多少?因式分解
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x^2y-2x^2y^3-3x^3y等于多少?因式分解
x^2y-2x^2y^3-3x^3y等于多少?因式分解
x^2y-2x^2y^3-3x^3y等于多少?因式分解
x²y-2x²y^3-3x^3y
=x²y(1-2y²-3x)
=-x²y(2y²+3x-1)
x^2y-2x^2y^3-3x^3y
=-x²y(2y²-1+3x﹚
x²y-2x²y³-3x³y
=-x²y(2y²+3x-1)
2y²+3x-1好像不能再分解了
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(2x+3y)(2x-3y)等于多少