因式分解(x^2+1)×(3x-2)+(2x-3)(1+x^2) 化简求值[2x^2+(x+y)(x-y)]×[(x+y
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/10/05 21:37:59
因式分解(x^2+1)×(3x-2)+(2x-3)(1+x^2) 化简求值[2x^2+(x+y)(x-y)]×[(x+y)^2+(x-y)^2] x=2 y=-1/2
因式分解
(x^2+1)×(3x-2)+(2x-3)(1+x^2)
=(x²+1)(3x-2)+(2x-3)(x²+1)
=(x²+1)(3x-2+2x-3)
=5(x²+1)(x-1)
化简求值[2x^2+(x+y)(x-y)]×[(x+y)^2+(x-y)^2] 你的题目可能有一个字母写错了
=(2x²+x²-y²)(2x²+2y²)
=2(3x²-y²)(x²+y²)
当x=2 y=-1/2时
原式=2×(12-1/4)(4+1/4)
=799/8
(x^2+1)×(3x-2)+(2x-3)(1+x^2)
=(x²+1)(3x-2)+(2x-3)(x²+1)
=(x²+1)(3x-2+2x-3)
=5(x²+1)(x-1)
化简求值[2x^2+(x+y)(x-y)]×[(x+y)^2+(x-y)^2] 你的题目可能有一个字母写错了
=(2x²+x²-y²)(2x²+2y²)
=2(3x²-y²)(x²+y²)
当x=2 y=-1/2时
原式=2×(12-1/4)(4+1/4)
=799/8
因式分解(x^2+1)×(3x-2)+(2x-3)(1+x^2) 化简求值[2x^2+(x+y)(x-y)]×[(x+y
因式分解3x^2(x-y)+6x(y-x)
先化简再求值:(x-2y)²-(x+2y)(x-2y)-(x-3y)(x-y).其中x²+9y
1) (x+y)^2-(x+y)^3 2) (x-y)^2-(x-y)^3 3)(x-y)^2-(y-x)^3 因式分解
化简求值[1-(2x/x+y)]÷ (x²-2xy+y²/3x+3y)+(x²+xy/x&
化简求值8x的平方-5x(4y-x)+4x ×(-4x+5/2y)x=1 y=3
(x-y)^2-(x-y)^3因式分解
(x+y)^2-3(x-y)因式分解
先化简再求值(x-y)(x+y)-(x-2y) 的完全平方+x(3x-5y)-(x-y)(x-2y),其中x=1/2 y
化简求值:(1/3x-y)(-1/3x-y)+1/3x(1/3x-y),其中x=2,Y=3
一、 化简求值1 (x-2-(12)/(x+2))/(4-x)/(x+2)2【(x-y)²+(x+y)(x-y
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(