解方程:x^3 + 2x(2x-1) + 26 = 5x(x^2 - 3) - (2x)^2 (x-1)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 19:04:40
![解方程:x^3 + 2x(2x-1) + 26 = 5x(x^2 - 3) - (2x)^2 (x-1)](/uploads/image/z/3760890-42-0.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%3Ax%5E3+%2B+2x%282x-1%29+%2B+26+%3D+5x%28x%5E2+-+3%29+-+%282x%29%5E2+%28x-1%29)
解方程:x^3 + 2x(2x-1) + 26 = 5x(x^2 - 3) - (2x)^2 (x-1)
解方程:x^3 + 2x(2x-1) + 26 = 5x(x^2 - 3) - (2x)^2 (x-1)
解方程:x^3 + 2x(2x-1) + 26 = 5x(x^2 - 3) - (2x)^2 (x-1)
x^3 + 2x(2x-1) + 26 = 5x(x^2 - 3) - (2x)^2 (x-1)
=> x^3+4x^2-2x+26=5x^3-15x-4x^3+4x^2
=>x^3+4x^2-2x+26=x^3-15x+4x^2
=>-2x+26=-15x
=>13x=26
x=2