6x²y-9xy-xy²+3x²y
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6x²y-9xy-xy²+3x²y6x²y-9xy-xy²+3x²y6x²y-9xy-xy²+3x²y6x&s
6x²y-9xy-xy²+3x²y
6x²y-9xy-xy²+3x²y
6x²y-9xy-xy²+3x²y
6x²y-9xy-xy²+3x²y
=9x²y-9xy-xy²
=xy(9x-9-y)
因式分解吧》?
6x²y-9xy-xy²+3x²y
=9x²y-9xy-xy²
=xy(9x-9-y)
-9x²-y²+6xy
6xy²-9x²y-y²因式分解
6x²y-9xy-xy²+3x²y
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6xy²-9x²y-y³
6xy²-9x²y-y³因式分解
x²-2xy+y²-9
x²-y²+6x+9分之x²+y²-9-2xy
因式分解-x²+6xy-9y²
1-x²-9y²+6xy因式分解
6xy²-9x²-y³
数学学的好的人进来帮我算算这几道一元一次方程的题~(5x²y-2xy²-3xy)-(2xy+5x²y-2xy²)其中x= -1/5 y= -1/33x²+[3xy²-1/2(4x²y-8xy²)+x²y]-5xy²其中x= -3/2 y=3/1(x²+y)+(x&sup
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x²+xy-2y²-x+7y-6
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3x³ - 6x²y+ 3xy²