Question

Find all solution(s) of the quadratic equation x2 – 100 = 0. Question 9 options: A) x = 10, –10 B) x = –10 C) x = 10 D) x = 100, –100

Answer 1

x = - 10, x = 10

Explanation:

Given

x² - 100 = 0 ( add 100 to both sides )

x² = 100 ( take the square root of both sides )

x = ±
`√(100)` = ± 10

solutions are x = - 10, x = 10