Find roots of polynomial $$ p(x) = x^3+x^2+15x-45 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 2.0947\\[1 em]x_2 &= -1.5474+4.369i\\[1 em]x_3 &= -1.5474-4.369i \end{aligned} $$Explanation
Polynomial $ x^3+x^2+15x-45 $ has no rational roots that can be found using Rational Root Test, so the roots were found using qubic formulas.
This page was created using
Polynomial Roots Calculator