Question

with actually calculating tghe cubes , find value of (28)cube+(-15)cube+(-13)cube

Answer 1

${28}^{3} + ( - {15}^{3} ) + ( - {13}^{3} ) \\ = {28}^{3} - {15}^{3} - {13}^{3} \\ = {28}^{3} - {28}^{3 } \\ = {0}^{3} \\ = 0 \\ \\ \\ \\ thanks$