matlab 求多项式的根 f（x）=x^3+(x-0.98)^2/(x+1.25)^3-5(x+1/x)此多项式不能化成标准形式_数学解答

matlab 求多项式的根 f（x）=x^3+(x-0.98)^2/(x+1.25)^3-5(x+1/x)此多项式不能化成标准形式.怎么求?

人气：115 ℃　时间：2020-05-22 00:11:11

解答

solve('x^3+(x-0.98)^2/(x+1.25)^3-5(x+1/x)')
ans =
[ -1.7693461321142833764999077560120-.77609822541869890980765902824168*i]
[ -1.7693461321142833764999077560120+.77609822541869890980765902824168*i]
[ -.71072373506126561516931198642980-1.5071183220510262352565361912516*i]
[ -.71072373506126561516931198642980+1.5071183220510262352565361912516*i]
[ -.49750012388574717849720797820838]
[ 1.7076398582368451618356474630919]