math problem

$(\frac{1}{12}){}^{2}+12x$

$\frac{1}{12}\times\frac{1}{12}+12x$

$\frac{1}{144}+12x$

$12x+\frac{1}{144}$

$12x+0.006944444444...$

(1/12)^2+12x=1728x-1/144