If $a^{2}+b^{2} =82$ and ab=9, then a possible value of $a^{3}+b^{3}$.

720 750 830 730

730

If $a^{2}+b^{2} =82$ ab=9, Then a possible value of $a^{3}+b^{3}$. Put the value of a = 9 and b = 1 $a^{3}+b^{3}$ = $9^{3}+1^{3}$. = 730