Answer:
x = -2 ± 2√2
Explanation:
To answer this question, we will first need to put the equation in the standard form: ax² + bx + c = 0
This can be done as follows:
x² + 4x + 4 - 8 = 0
x² + 4x - 4 = 0
Comparing the equation we reached with the general form, we would find that:
a = 1
b = 4
c = -4
Now, to get the solution of the equation, we will use the quadratic formula shown in the attached image
Substituting in the equation with the values of a, b and c, we can get the two roots as follows:
x = [tex] \frac{-4 +/- \sqrt{(4)^2 - 4(1)(-4)} }{2(1)} [/tex]
x = -2 ± 2√2
Hope this helps :)
