Question

Method to solve the root of a polynomial equation numerically

Answer 1

It can be solved by the formula:
$x = \frac{ - b + \sqrt{b {}^{2} - 4ac } }{2a}$
And
$x = \frac{ - b - \sqrt{b ^{2} - 4ac} }{2a}$

Answer 2

Heya,

Roots of a quadratic polynomial equation can be solved by quadratic formula i.e.

x = -b ± ✓(b)² - 4ac/2a

There are two more methods by which we can solve roots of quadratic equation and they are:
(1) Factorisation method
(2) Completing square root method.

Hope this helps you....:)