4x²y-xy²
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4x²y-xy²
4x²y-xy²
4x²y-xy²
=xy(4x-y)
4x²y-xy² = xy(4x-y)
4x²y-xy²
计算:4xy²-3x²y-{3x²y-[2xy²-4x²y+2(x²y-2xy²)]急
x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy
计算x²-x/x²×x/1-x和x²-4y²/x²+2xy+y²÷x+2y/x²+xy
3x²-y²=8x²+xy+y²=4
6x²-xy-15y²=0 求x²-2xy+4y²/2x²-3xy-3y²告诉下
6x²-xy-15y²=0 求2x²-3xy-3y²分之x²-2xy+4y²
因式分解 4xy²-4x²y-y³
因式分解2x(x-y)^4 - x²(x-y)² + xy(y-x)²RT
已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² + xY- 2Y² =求x² - 4x Y+ Y² =
1.(x+y)²-4xy=( )²2.x²-( )+25y²=( )²3.x²-8x²y²+16y四次方=( )²4.7.2²-2.8²= .
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因式分解 3x²+4xy-y²
因式分解3x²+4xy-y²
3x²+4xy-y²因式分解(过程)
因式分解3x²+4xy+y²