Question

help to solve this 2 sumssss...

Answer 1

hey friend by this formula u can solve it..
hope it is helpful to you...

Answer 2

$729 {a3 + 64b3}^{?}$
${a3 + b3 + 3ab}^{?}$
${(9a)3 + (4b)3 + 3 \times 9a \times 4b}^{?}$
${729a3 + 64b3 + 108ab}^{?}$