Question

without actually calculating the cubes , find the valve of the following: (27)³-(14)³-(13)³​

Answer 1

Answer

let a = 27

b = -14

c = -13

a + b + c = 27 - 14 - 13 = 0

When a + b + c = 0, a^3 + b^3 + c^3 = 3abc

3abc = 3 × 27 × -14 × -13

= 14742

Answer 2

Answer in the attachment:-