Question

8. Use property to evaluate :
(i) 13^3 + (-8)^3 + (-5)^3

Answer 1

13 + (-8) + (-5) = 0

If a + b + c = 0, then a^3 + b^3 + c^3 = 3abc

(13)^3 + (-8)^3 + (-5)^3 = 3 * 13 * (-8) * (-5)

= 1560

I hope you are understand my solution