Find roots of polynomial $$ p(x) = 3x^2-42x+145 $$
Answer
The roots of polynomial $ p(x) $ are:
$$ \begin{aligned}x_1 &= 7.8165\\[1 em]x_2 &= 6.1835 \end{aligned} $$Explanation
The solutions of $ 3x^2-42x+145 = 0 $ are: $ x = 7-\dfrac{\sqrt{ 6 }}{ 3 } ~ \text{and} ~ x = 7+\dfrac{\sqrt{ 6 }}{ 3 }$.
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