identify the solutions to the equation x^(2)=4 when you solve by factoring

Question

a. 2, -2

b. -2

c. 2

d. not factorable

Answer 1

x₁₂ = ± √4

x₁₂ = ± 2  

Answer 2

x = sqrt (4)

x = +2 , - 2

answer a.