How do I find the roots of this polynomial equation? x³ - 18x + 27 I don't want the "bUt JuSt UsE yOuR cAlCuLaToR" answer. I want to know how to solve it.

Question

asked May 3, 2020 133k views

1 Answer

Josmar · Answer 1 · 2020-05-07T23:37:22+0000

Here is how you find the answer: (not "bUt JuSt UsE yOuR cAlCuLaToR")

Factor x3−18x+27

x3−18x+27

=(x−3)(x2+3x−9)

Hope this helps!!!!!!!