求解x^3-2x^2+3=0

2025-02-25 04:35:58
推荐回答(3个)
回答1:

x^3-2x^2+3=0
x³+x²-3x²+3=0
x²﹙x+1﹚-3﹙x+1﹚﹙x-1﹚=0
﹙x+1﹚﹙x²-3x+3﹚=0
x+1=0
x=-1

回答2:

原式x(x^2-2x+3/x)=0
x(x^2-2x^2+3)=0
-x^2+3=0
-x^2=-3
x=±根号3

回答3:

-1