计算 (x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2) 大仙帮帮忙
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/27 12:11:18
计算 (x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2) 大仙帮帮忙
计算 (x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2) 大仙帮帮忙
计算 (x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2) 大仙帮帮忙
原式=【(x+y)(x-y)】²-(x²-y²)(x^2+y^2)
=(x²-y²)²-x^4+y^4
=2y^4-2x²y²
(x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2)
=(x+y)^2(x-y)^2-(x^2-y^2)(x^2+y^2)
=[(x+y)(x-y)]^2-(x^2-y^2)(x^2+y^2)
=(x^2-y^2)^2-(x^4-y^4)
=x^4-2x^2y^2+y^4-x^4+y^4
=2y^4-2x^2y^2
计算2x/x-y
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
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).
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[2x^2-(x+y)(x-y)][(-x-y)(y-x)+2y^2]
计算:x+2y/x-y+2x/y-x-3y/x-y
计算:[(x+y)(x-y)-(x-y)^2+2y(x-y)]/(-2y)
计算 [2x²-(x-y)(x+y)][(2-x)(2+x)+(y-2)(y+2)]