-2^3-(-2)^2+(-3)^2-(-1)^3(-2xy^2)^2(-0.5x^2y^3)(-2/3x^2y^3)(x-2y+1)(x+2y-1)5*399/8+5*1/8(x-2y)(x+2y)(x^2-4y^2)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/19 08:21:02
![-2^3-(-2)^2+(-3)^2-(-1)^3(-2xy^2)^2(-0.5x^2y^3)(-2/3x^2y^3)(x-2y+1)(x+2y-1)5*399/8+5*1/8(x-2y)(x+2y)(x^2-4y^2)](/uploads/image/z/569770-34-0.jpg?t=-2%5E3-%28-2%29%5E2%2B%28-3%29%5E2-%28-1%29%5E3%28-2xy%5E2%29%5E2%28-0.5x%5E2y%5E3%29%28-2%2F3x%5E2y%5E3%29%28x-2y%2B1%29%EF%BC%88x%2B2y-1%EF%BC%895%2A399%2F8%2B5%2A1%2F8%28x-2y%29%28x%2B2y%29%28x%5E2-4y%5E2%29)
-2^3-(-2)^2+(-3)^2-(-1)^3(-2xy^2)^2(-0.5x^2y^3)(-2/3x^2y^3)(x-2y+1)(x+2y-1)5*399/8+5*1/8(x-2y)(x+2y)(x^2-4y^2)
-2^3-(-2)^2+(-3)^2-(-1)^3
(-2xy^2)^2(-0.5x^2y^3)(-2/3x^2y^3)
(x-2y+1)(x+2y-1)
5*399/8+5*1/8
(x-2y)(x+2y)(x^2-4y^2)
-2^3-(-2)^2+(-3)^2-(-1)^3(-2xy^2)^2(-0.5x^2y^3)(-2/3x^2y^3)(x-2y+1)(x+2y-1)5*399/8+5*1/8(x-2y)(x+2y)(x^2-4y^2)
-2^3-(-2)^2+(-3)^2-(-1)^3=-2
(-2xy^2)^2(-0.5x^2y^3)(-2/3x^2y^3)题不对
x-2y+1)(x+2y-1)=x^2-4y^2+4y-1
5*399/8+5*1/8
=250
(x-2y)(x+2y)(x^2-4y^2) 题目不对吧应该是(x-2y)(x+2y)(x^2+4y^2)
=(x^2-4y^2)^2