Question

Without calculating the cubes find the value of 53^3-40^3-13^3

Answer 1

Answer:

hey mate

53³ -40³ -13³

53-40-13= 0

so we can use a³+b³c³= 3abc

3×53×(-40)×-13= 82680

(53)³ + (-40)³ + (-13)³ = 82680

hope it will help you