Question

without calculating the cubes find (- 11)^3 (26)^3 - (15)^3

Answer 1

(-11) +26+(-15)
=26-11-15
=26_26
=0
Since (-11)=26+(-15)is 0.
So,
${( - 11)}^{3} \times {26}^{3} \times {( - 15)}^{3} \\ = 3( - 11)(26)( - 15) \\ = 12870$
Here is your answer.............