Question

Without actual calculation find: (−8) 3 + (13) 3 + (−5) 3​

Answer 1

(−8) 3 + (13) 3 + (−5) 3

-24+24-15

-15

(−8) 3 + (13) 3 + (−5) 3 = -15

Answer 2

$( - 8)3 + 13(3) + ( - 5)3 \\ \\ - 24 + 39 - 15 \\ \\ = 39 - 39 = 0$