Question

Find the solutions to the equation below . Check all that apply . X^2-4=0

Answer 1

there are 2 solutions in total

Explanation:

x^2-4=0

x^2=4

x= ±2i

Answer 2

x=±2

Explanation:

x²-4=0

x²-2²=0

(x+2)(x-2)=0

either x+2=0,x=-2

or x-2=0,x=2