Solving Quadratic Equations

Solving Quadratic Equations

To solve a quadratic equation means to find all the roots of the quadratic equations.
Example:
Find the roots of the quadratic equations
a. x 2 = 9
b. 2 x 2 98 = 0
Answer:
 a.
x 2 = 9 x = ± 9 x = ± 3 b.
2 x 2 98 = 0 2 x 2 = 98 x 2 = 98 2 = 49 x = ± 49 = ± 7

A quadratic equation may be solve by using one of the following method
  1. Factorisation
  2. Completing the square
  3. Using quadratic formula

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