A quadratic equation is an equation of the form ax2 + bx + c=0 where a, b, and c are constants and a ≠ 0.
The values of variable x which satisfy the quadratic equation is called as Roots (also called solutions or zeros) of a Quadratic Equation.
The number of roots of a polynomial equation is equal to its degree. Hence, a quadratic equation has exactly 2 roots as the highest power of x in quadratic equation is 2.
There are three methods for finding roots of a quadratic equation:
◾ By doing factorization
◾ By completing the square
◾ By using the quadratic formula
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