Question 1124475
How to solve;

{ { { x^-2 = 9/25 } } }
Don't put spaces between the braces.
{{{ x^-2 = 9/25 }}}
{{{ 1/x^2 = 9/25 }}}
Invert
{{{x^2 = 25/9}}}
x = 5/3
x = -5/3