(x-6y)(x+2y)+16y^2 因式分解··老是看不出点什么.什么平法差,完全平方公式= = 就是看、变不出来

【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) (x-6y)(x+2y)+16y^2 因式分解 x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 6x^2-xy-2y^2-4x+5y-2因试分解 分解因试..X平方-2XY-8Y平方-X-14Y-6 化简y(x+y)+(x+y)(x-y)-x^2 计算:(x-y)^2*(y-x)^2*(x-y)^6 6(x+y)2-2(x-y)(x+y)因式分解 (x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2 (x+y)^2-16(x-y)^2 (x+y)^2-16(x-y)^2 16-8（x-y)+(x-y)2 (x+y)^2+6(x+y)+9 [2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2 3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少? [(x-y)^2-(x+2y)(x-2y)]/y 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2= 计算:y-x分之x+y+x-y分之y-y-x分之2x-y