What are the solutions of the quadratic equation 49x2 = 9?

A. x = 1/9 and x = -1/9
B. x = 3/7 and x = -3/7
C. x = 3/4 and x = -3/4
D. x = 9/49 and x = -9/49

Brainliest if you explain how. got stumped on this one