解一元三次方程4x^3-24x^2+48x-32=0,
问题描述:
解一元三次方程4x^3-24x^2+48x-32=0,
最好有过程,
答
4x^3-24x^2+48x-32=0
x^3-6x^2+12x-8=0
x^3-2x^2-4x^2+12x-8=0
x^2(x-2)-4(x^2-3x+2)=0
x^2(x-2)-4(x-1)(x-2)=0
(x-2)(x^2-4x+4)=0
(x-2)^3=0
x=2