用公式法分解1.100-(3x+2y)²2.(x+y)²-10(x+y)+253.x²-x
用平方差公式分解因式(2X+y)²-(x+2y)²
分解因式(提公式法用) 8a(x-y)²-4b(y-x)
2.(x+y)²(x-y)²-(x-y)(x+y)(x²+y²)
用公式法分解因式1.100-(3x+2y)²2.(X-Y)²-10(X-Y)+253.X²
运用乘法公式(x+y+1)(x+y-1)(2x-y-3)²(2x-y-3)³【(x+2)(x-2)】
运用乘法公式计算:(1)(x-y)(x+y)-(2x-y)²
分解因式:8(x²-2y²)-x(7x+y)+xy
分解因式8(x²-2y²)-x(7x+y)+xy=
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
分解因式:(x+y)3次方(x-y)-(x+y)(x-y)3次方
分解下列因式:x(y-x)+y(y-x)-(x-y)^2
(3x-y)²-2x(4x-5y)-(x+2y)²