Question
Find roots of polynomial $$ p(x) = 15x^2+8x-20 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 0.9184\\[1 em]x_2 &= -1.4518 \end{aligned} $$Explanation
The solutions of $ 15x^2+8x-20 = 0 $ are: $ x = -\dfrac{ 4 }{ 15 }-\dfrac{ 2 \sqrt{ 79}}{ 15 } ~ \text{and} ~ x = -\dfrac{ 4 }{ 15 }+\dfrac{ 2 \sqrt{ 79}}{ 15 }$.
You can use step-by-step quadratic equation solver to see a detailed explanation on how to solve this quadratic equation.
This page was created using
Polynomial Roots Calculator