Question

find the value of(-15)^3+(7)^3+(8)^3​

Answer 1

It is in the form of a^3 + b^3 + c^3

if a + b + c is zero then a^3 + b^3 + c^3 = 3abc

Let's check in this case here a + b + c = (-15) + 7+8 = (-15) + 15 = 0

so , (-15)^3 + (7)^3 + (8)^3 = 3abc

= 3(-15)(7)(8) = -2520