Question

Without actually calculating the cubes, find the value of
(3)3 + (5)3 + (–8)3.

Answer 1

Answer:

-360

Step-by-step explanation:

a^3+b^3+c^3=3abc is true only if a+b+c=0

a=3, b=5, c= -8

a+b+c=3+5+(-8)

          =8-8

          =0

(3)^3 + (5)^3 + (–8)^3=3*3*5*-8

                                 = -360