Question

if 3+5-8=0 then 3 cubed + 5 cubed - 8 cubed =?​

Answer 1

Answer:

-360

Step-by-step explanation:

3+5-8=0

8-8=0

THEN,

3³+5³-8³

USING IDENTITY

IF A+b+c = 0, THEN A³+B³+C³=3ABC

AS A+B+C = 0 WE CAN USE THE ABOVE IDENTITY

A=3

B=5

C= -8

=3×3×5×-8

=9×-40

=-360

pls mark brainliest

Answer 2

We know,

x+y+z= 0

therefore, x-cube + y-cube + z-cube=3xyz

3^3 + 5^3 -8^3 = 3×3×5×-8

= -360

HOPE THIS HELPS YOU