Question

The discriminant of 2x² + √32 x - 2 is

Answer 1

The answer is 48.

Explanation:

The formula for discriminant, D = b² - 4ac. Then you have to substitute the following values into the formula :

`D = {b}^(2) - 4ac`

`let \: a = 2 \\ let \: b = √(32) \\ let \: c = - 2`

`D = {( √(32) )}^(2) - 4(2)( - 2)`

`D = 32 + 16`

`D = 48`