100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 01:29:59
![100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6](/uploads/image/z/3698377-25-7.jpg?t=100%E5%88%86x%5E3%282x-5%29%28x%2B1%29%2B%285x%2B2%29%28x-1%29%3D0x%5E2%2F3%2B48%2Fx%5E2%3D10%28x%2F3-4%2Fx%29%E2%88%9Ax-1%2B%E2%88%9A2x-3%2B%E2%88%9A3x-5%2B%E2%88%9A4x-5%3D5x-6)
100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6
100分
x^3(2x-5)(x+1)+(5x+2)(x-1)=0
x^2/3+48/x^2=10(x/3-4/x)
√x-1+√2x-3+√3x-5+√4x-5=5x-6
100分x^3(2x-5)(x+1)+(5x+2)(x-1)=0x^2/3+48/x^2=10(x/3-4/x)√x-1+√2x-3+√3x-5+√4x-5=5x-6
x/3-4/x=t代换可以了