# How do you solve # 21x^2 + 22x - 24 = 0#?

##### 1 Answer

Feb 26, 2017

#### Explanation:

If the **discriminant** of a quadratic equation **complete square of a rational number**, we can solve it by factorization.

Here in the given equation

For factorization, split middle term

Therefore,

or

or

Hence either

or