Question

a^3+216/2a+12 - сократите дробь

Answer 1

$\frac{a^{3}+216}{2a+12}=\frac{a^{3}+6^{3}}{2(a+6)}=\frac{(a+6)(a^{2}-6a+36)}{2(a+6)}=\frac{a^{2}-6a+36}{2}$