y-2x=0,求代数式(x^2-y^2)(x^2-xy+y^2)/(x+Y)(x^3-y^3)的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 20:07:22
![y-2x=0,求代数式(x^2-y^2)(x^2-xy+y^2)/(x+Y)(x^3-y^3)的值](/uploads/image/z/7802872-16-2.jpg?t=y-2x%3D0%2C%E6%B1%82%E4%BB%A3%E6%95%B0%E5%BC%8F%28x%5E2-y%5E2%29%28x%5E2-xy%2By%5E2%29%2F%28x%2BY%29%28x%5E3-y%5E3%29%E7%9A%84%E5%80%BC)
x)55yϦnx_"H2H̨5*#A"@)cZ6I*ҧ;֨eO[>r" ON K
0e$\}
a@BVײ"D_H$ف csT
y-2x=0,求代数式(x^2-y^2)(x^2-xy+y^2)/(x+Y)(x^3-y^3)的值
y-2x=0,求代数式(x^2-y^2)(x^2-xy+y^2)/(x+Y)(x^3-y^3)的值
y-2x=0,求代数式(x^2-y^2)(x^2-xy+y^2)/(x+Y)(x^3-y^3)的值
y=2x带入后面式子
(x^2-4x^2)(x^2-2x^2+4x^2)/(3x)(x^3-8x^3)=-9x^4/-21x^4=3/7