Answer:
x = x
Step-by-step explanation:
I'm just gonna assume you meant to write it like this even though what you wrote makes no sense:
(x + 8)² - 7 = 0
(x + 8)
2 − 7 = 0
Since both equal zero, set them both equal to eachother and solve for x
(x + 8)² - 7 = (x + 8)
2 − 7
(x + 8)² = 2x + 16
(x + 8)(x + 8) = 2x + 16
x + 8 = x + 8
since both sides are equal, there are infinitely many solutions
