Question

Select the TWO numbers that are solutions to the equation x2 = 49.

A. 49
B. 7
C. -49
D. 2
E. -7

Answer 1

x = ±7

x=7, -7

Explanation:

x^2 = 49

Take the square root of each side

sqrt(x^2) = sqrt(49(

x = ±7