Question

Solve x^2-4=0 please solve step by step

Answer 1

x=2 or x=−2

Explanation:

Let's solve your equation step-by-step.

x2−4=0

Step 1: Add 4 to both sides.

x2−4+4=0+4

x2=4

Step 2: Take square root.

x=±√4

x=2 or x=−2