Find roots of polynomial $$ p(x) = -2x^3-9x^2-270 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= -7.1447\\[1 em]x_2 &= 1.3223+4.1409i\\[1 em]x_3 &= 1.3223-4.1409i \end{aligned} $$Explanation
Polynomial $ -2x^3-9x^2-270 $ 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