Question

If x^2=4 then can x only be equal to 2?

(Geometry) true or false?

Answer 1

true because two to the second power is two times two and we know two times two = 4

Answer 2

This is false!

X^2 = 4
X can equal to -2 or 2

(2)^2 = 4
(-2)^2 = 4