Resposta :
[tex]2x \: . \: 9x {}^{2} \\ 18x {}^{1} \: . \: x {}^{2} \\ 18x {}^{1 + 2} \\\boxed{\boxed{\boxed{18x {}^{3} }}} \\ [/tex]
atte. yrz
[tex]2x \: . \: 9x {}^{2} \\ 18x {}^{1} \: . \: x {}^{2} \\ 18x {}^{1 + 2} \\\boxed{\boxed{\boxed{18x {}^{3} }}} \\ [/tex]
atte. yrz