Question 1057311

How do we get from 
1/x^2 = 1 or 1/x^2 = 9 
to

x^2 = 1  or x^2 = 1/9
?
Thank you for any help you can give, and my apologies for the long question.
<pre>{{{1/x^2 = 1}}}
{{{x^2 = 1}}} ------ Cross-multiplying
{{{matrix(1,7, x, "=", " "+-sqrt(1), or, x, "=", " "+- 1)}}}

Likewise, {{{1/x^2 = 9}}} becomes:
{{{9x^2 = 1}}} ------- Cross-multiplying
{{{x^2 = 1/9}}} ------- Dividing each side by 9
{{{matrix(1,7, x, "=", " " +-sqrt(1/9), or, x, "=", " "+- 1/3)}}}