2x/(x-8y)(x+8y)-(x+8y)/ (x-8y)(x+8y)怎麼计算了 详细

【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-8y)(x+y) 化简(2x/(x+y)-4x/(y-x))/8x(x^2-y^2)得 (2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解 (x-y)²-8(x-y-2) 16-8（x-y)+(x-y)2 -8(y-x)^2×(x-y) 2x/(x-8y)(x+8y)-(x+8y)/ (x-8y)(x+8y)怎麼计算了 详细 [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 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2= [(x+y)^2-y(2x+y)-8x]÷2x,其中x+-2 化简(4x-2y)-[5x-(8y-2x-x-y)]+x 化简(4x-2y)-﹛5x-[8y-2x-(x+y)]-x﹜ x^3+2x^2y-4x-8y 因式分解:8(x-2y)-x(7x+y)+xy. -(x-y)^2-2(y-x)^2-5(x-y)^2+8(x-y)^2化简 因式分解：-1/2*x*x*x*y+1/4*x*x*y*y-1/8*x*x*x*y*y*y 4x-3y/x-2y÷6y-8x/y-2x