Question

Without actually calculating cubes, find the value (-15)^3+(13)^3+(12)^3.
Please solve it's urgent

Answer 1

Answer:

$a {}^{3} + b {}^{3} + c {}^{3} = 3abc \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3( - 15)(13)(12) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = - 7020$

HOPE IT HELPS