Question

Which of the following is a solution to the equation x^2-16=0?

F. 32
G. 16
H. 8
J. 4
K. -4

Answer 1

Answer: solutions are J and K, +4,-4

Explanation:

x^2-16=0

we will add 16 from both side

x^2=16

x=sqrt16

x₁=4, x₂=-4