Distribute and simplify. Write all answers in simplest form.

(9x+2)(9x+1)=\displaystyle {\left({9}{x}+{2}\right)}{\left({9}{x}+{1}\right)}= 9x×\displaystyle {9}{x}\times +\displaystyle + 2×\displaystyle {2}\times
=\displaystyle = ( ) +\displaystyle + ( )
=\displaystyle =