Question

10

Solve the equation by finding square roots.
x² - 64 = 0
The solution is x =
Simp

Answer 1

x = ± 8

Explanation:

given the equation

x² - 64 = 0 ( add 64 to both sides )

x² = 64 ( take square root of both sides )

`√(x^2)` = ±
`√(64)` , that is

x = ± 8

the solution is x = - 8 or x = 8