Question

Find 4^3-9^3+5^3 without actually calculating the cube

Answer 1

= 4^3-9^3+5^3

= 64-729+75

=-665+75

=-590

Answer 2

by using Identity (if a+b+c=0, then a³+b³+c³=3abc)

so now, 4-9+5= 0

so , 3(4×-9×5)

= answer=-540