0.2297=(1/x^2-1/49)

Question

I don't get how to solve for x. Pls help stuck on a problem

Answer 1

multiply both sides of the equation by 49 x^2

.2297 (49x^2) = 49 - x^2
11.123 x^2 + x^2 = 49
12.123 x^2 = 49

x = +/- 7/sqrt(12.123)
= +/- 2.01