Question

Simplify This Radical Expression

CUBERT(8) – CUBERT(16)

I did this: (8)-(16) = -8

(8) - (16) =

8-16 = -8

But my teacher sent it back, what am i doing wrong?

Answer 1

The answer is: -0.5198

Explanation:

CUBERT(8) – CUBERT(16) is the cube root of 8 - cube root of 16:

CubeRT(8) - CubeRT(16) =

2 - 2.5198 = -0.5198

Hope this helps! Have an Awesome day!! :-)