Question

solve with an exact answer.
x^2 + 2x - 8

Answer 1

Start by factoring
(x+4)(x-2) = 0

The equation is true if either factor is zero.
x = +__ or -___

Answer 2

Can you show me the steps please???? to solve this equation.

Answer 3

I just did. The final answer is 2 or -4. Do you understand how to factor equations? That might be a topic worth reviewing.

If you wan to do it the hard way, you can also use the quadratic equation
x = [-b +/-sqrt(b^2-4ac)]/(2a)
Then substitute a = 1, b = 2 and c = -8
sqrt(b^2 -4ac) = sqrt36 = 6
x = (1/2)*[-2 +/-6]
= (1/2)(4 or -8)
= 2 or -4

Answer 4

Thank you so much and I definetly need to review how to factor equations<<<good night and sweet dreams>>>thank you for helping me