Question

What is the solution of the equation x^2 = 64? A) 8, B) 4, C) +8, D) +4

Answer 1

x = ± 8

Explanation:

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

`\sqrt{x^(2) }` = ±
`√(64)`

x = ± 8 ← note plus or minus

This is because 8² = 64 and (- 8)² = 64