Obviously x can't be equal to 0.

If both sides are divided by x, then x-3+ 1/x = 0, and x+ 1/x = 3.

In the above formula, both sides are squared at the same time: x 2+2+ 1/x 2 = 9, x 2+ 1/x 2 = 7.

Primitive formula

=1/(x2+1+1/x2) (denominator divided by x2)

= 1/( 1+7)

= 1/8

X 2 tenth plaza