大师作文网(x-2)(x+2)-(x-2)(x+2)-(x-1)(x+3)-(x+2)还有（2x+3y-2)(2x-3y+2)
来源：学生作业帮 编辑：大师作文网作业帮 分类：数学作业 时间：2024/11/19 12:41:57
(x-2)(x+2)-(x-2)(x+2)-(x-1)(x+3)-(x+2)还有（2x+3y-2)(2x-3y+2)
还有已知xy²=-2 求xy（2x³y^7-5x²y^5-y）
坐等
我搞错了(x-2)(x+2)-(x-1)(x+3)-(x+2)²
还有已知xy²=-2 求xy（2x³y^7-5x²y^5-y）
坐等
我搞错了(x-2)(x+2)-(x-1)(x+3)-(x+2)²
(x-2)(x+2)-(x-2)(x+2)-(x-1)(x+3)-(x+2)
=-(x-1)(x+3)-(x+2)
=-x²-2x+3-x-2
=-x²-3x+1
(2x+3y-2)(2x-3y+2)
=[2x+(3y-2)][2x-(3y-2)]
=4x²-(3y-2)²
=4x²-9y²+12y-4
xy（2x³y^7-5x²y^5-y）
=2x^4y^8-5x³y^6-xy²
=2(xy²)^4-5(xy²)³-xy²
=32+40+2
=74
=-(x-1)(x+3)-(x+2)
=-x²-2x+3-x-2
=-x²-3x+1
(2x+3y-2)(2x-3y+2)
=[2x+(3y-2)][2x-(3y-2)]
=4x²-(3y-2)²
=4x²-9y²+12y-4
xy（2x³y^7-5x²y^5-y）
=2x^4y^8-5x³y^6-xy²
=2(xy²)^4-5(xy²)³-xy²
=32+40+2
=74
1、x(x-y)(x+y)-x(x+y)^2
因式分解3x^2(x-y)+6x(y-x)
有这样一道题:"计算(2*x*x*x-3*x*x*y-2*x*y*y)-(x*x*x-2*x*y*y+y*y*y)+【-
函数,y=3x/(x^2+x+1) ,x
函数y=3x/(x^2+x+1) （x
(x-2)(x+2)-(x-2)(x+2)-(x-1)(x+3)-(x+2)还有（2x+3y-2)(2x-3y+2)
(1)(x^2/x)-y-x-y
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
【x-3y][x+y]-[x-2y][x +2y]-[x-y
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)
x/x-y*y^2/x+y-x^3y2/x^4-y^4/x^2/x^2+y^2
化简：3x（2x+y)-2x(x-y) x是字母x不是乘号