x²-y²+2x-2y因式分解
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x²-y²+2x-2y因式分解x²-y²+2x-2y因式分解x²-y²+2x-2y因式分解(x+y)(x-y)+2(x-y)=(x-y)(x
x²-y²+2x-2y因式分解
x²-y²+2x-2y因式分解
x²-y²+2x-2y因式分解
(x+y)(x-y)+2(x-y)
=(x-y)(x+y+2)
x²-y²+2x-2y
=(x+y)(x-y)+2(x-y)
=(x+y+2)(x-y)
x²-y²+2x-2y
=(x+y)(x-y)+2(x-y)
=(x-y)(x+y+2)
因式分解2x²+4xy+2y²-8z²
计算4m²(2x-3y)²-m²(3x-2y)²和x²﹙x-y﹚+y²﹙y-x﹚的值
3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b)²÷(1/a²-1/b²) (3x&su3y/2x+2y+2xy/x²+xy 2x/x²-64y²-1/x-8y (1/a+1/b)²÷(1/a²-1/b²) (3x²/4y)²×2y/3x+x²/2y²÷2y²/
分式的除法运算x²-4y²/x²+y²+2xy÷2y+x/x²+xy
x²-y²+2x-2y因式分解
因式分解:(x²-2x)²-3x²+6x
1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
求几道因式分解1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
已知,x²-2y²-2xy-4y+4=0 求x²+y²的值
分解因式:x²-3xy+2y²+x-2
设x²+xy=3,xy+y²=2,求2x²-xy-3y²的值
计算x²-x/x²×x/1-x和x²-4y²/x²+2xy+y²÷x+2y/x²+xy
若x²+xy-2y²=0,则x²+3xy+y²/x²+y²
x²+xy-2y²=0则x²+3xy+y²/x²+y²
(1):5(a²b-2ab²+c)-4(2c+3a²b-ab²);(2):(x²-2y-z²)-(-γ²+3x²-z²)+(5x²-γ²+2z²)(3):-{2a²b-[2abc-(4ab²-a²b)]}第
因式分解:(2x²+5x)²-2x²-5x-6 X²-3X²-36Y² 7X²-Y+XY-217X²-3Y+XY-21
(4x-2y²)-[5x-x+y²]-x 化简!
怎么算啊这个:X²+4X+Y²-2Y+5=0 则X²+Y²=?²²²²²²²²²²²²X²+4X+Y²-2Y+5X=0 则X²+Y²=?