计算：1/x^2-y^2+2/(x-y)^2

来源：学生作业帮助网编辑：六六作业网时间：2025/01/30 16:07:16

计算：1/x^2-y^2+2/(x-y)^2计算：1/x^2-y^2+2/(x-y)^2计算：1/x^2-y^2+2/(x-y)^21/(x²-y²)+2/(x-y)²=

计算：1/x^2-y^2+2/(x-y)^2
计算：1/x^2-y^2+2/(x-y)^2

计算：1/x^2-y^2+2/(x-y)^2
1/(x²-y²)+2/(x-y)²
=1/[(x+y)(x-y)]+2/(x-y)²
=(x-y)/[(x+y)(x-y)²]+[2(x+y)]/[(x+y)(x-y)²]
=[(x-y)+2(x+y)]/[(x+y)(x-y)²]
=(3x+y)/[(x+y)(x-y)²]

计算:y-x分之x+y+x-y分之y-y-x分之2x-y 计算(x+y-1)^2 计算2x/x-y 计算:(x+2y)(2x-y) 计算:(x+3y)(2x-y) 计算:(2x-3y)(x+y) 计算:(-x-2y) * (3x-y) 计算：(x+y)-3(x-2y). (x+y)(x-y)-(2x+y)(x-y+1)计算要过程计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x 计算：[(x+y)(x-y)-(x-y)^2+2y(x-y)]/(-2y) 计算:(x-y)^2*(y-x)^2*(x-y)^6 计算(x-y)(y^2-x^2)(-x-y) 计算(x+y)(x+y)^2(-x-y)^3 3x(x-y)+2y(x-y) 计算计算：（x-y）^2-(x+y)(x-y) （x-2y）(x+y)+（x+y）计算计算:2/x+1/(x-y)