Question

2. What is the value of x in the equation x² = 64?

A. x = ±8
B. x =
±16
C. X =
32
D. x = 128

Answer 1

Explanation:

To solve for x in the equation x² = 64, we need to take the square root of both sides of the equation. However, we need to consider both the positive and negative square root because the square of both a positive and negative number results in the same positive value. Therefore:

x² = 64

√x² = ±√64

x = ±8

So the solutions to the equation x² = 64 are x = 8 and x = -8.