Answer:
x = ± 10
Step-by-step explanation:
Given
x² - 100 = 0 ( add 100 to both sides )
x² = 100 ( take the square root of both sides )
x = ±
← note plus or minus, hence
x = ± 10
On which one? You did not provide anything for me to help you with.
Answer:
what?
Step-by-step explanation:
I believe it is A. Hope this helps.