x^3-6x^2-3x+10=0求解
问题描述:
x^3-6x^2-3x+10=0求解
答
x^3-6x^2+3x+10=0
x^2(x+1)-7x(x+1)+10(x+1)=0
(x+1)(x^2-7x+10)=0
(x+1)(x-2)(x-5)=0
x1=-1 x2=2 x3=5