Question

Solve this using square roots and show your work please
4x^2-256=0

Answer 1

x = ± 8

Explanation:

Given

4x² - 256 = 0 ( add 256 to both sides )

4x² = 256 ( divide both sides by 4 )

x² = 64 ( take the square root of both sides )

x = ±
`√(64)` = ± 8

Solutions are x = - 8, x = 8