Question

solve this without actually calculating cubes, show the working if possible

Answer 1

Answer:

hey mate here answer is 16380

Step-by-step explanation:

let

a be 28

b be -15

c be -13

sum of a b and c is 0

28+(-15)+(-13)

=28-15-13

=28-28

=0

we will use the property

a cube + b cube + c cube = 3 abc because a +b+c =0

so

3 × 28 × (-15)×(-13)

=16380

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