algebra homework help

Question

factorize the expression x ² + 4x -8 =0

Answer 1

Given that

There are no exact roots of the given equation

We have to use discriminant formula

Here a = 1 and b = 4 and c = -8

Therefore the roots are

Comments

Therefore, the factor form of x ² + 4x -8 =0 is (x - (- 2 + 2√3))(x - (- 2 - 2√3)).