因式分解(x+y)²-16(x-y)²
因式分解(x+y)²(x-y)-(x+y)(x²+y²)
因式分解 -5x³y(x-y)³+20y【x²(y-x)】²
x(x-y)-y(y-x)+(x-y)²因式分解
因式分解:X²-Y²-(X+Y)²
因式分解:(x+y)²-(x-y)²
(2x+y)²-(x+2y)² 因式分解
3m(x-y)-2(y-x)²因式分解
因式分解:(x+3y)²-x-3y
因式分解:25(x-y)²+10(y-x)+1
3(x-2y)²+(x-2y)因式分解
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
因式分解 (1).(x+y)(x+y-6)+9 (2).x²-16y²-x-4y