Question

PLEASE. HELP. SERIOUSLY PLEASE.


jess solved the quadratic equation x^2+2x = 8 but made a mistake. her work is shown below. identify the step(s) in which a mistake was made

Answer 1

Answer:

x value would be 2

Step-by-step explanation:

The computation is shown below:

Given that

x^2 + 2x = 8

x^2 + 2x - 8 = 0

x^2 + 4x - 2x - 8 = 0

x(x + 4) - 2(x + 4) = 0

(x - 2) (x  + 4) = 0

So, x value would be 2

x - 2 = 0

x = 2