Find roots of polynomial $$ p(x) = 3x^3-5x^2-7 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 2.1646\\[1 em]x_2 &= -0.249+1.0079i\\[1 em]x_3 &= -0.249-1.0079i \end{aligned} $$Explanation
Polynomial $ 3x^3-5x^2-7 $ 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