Question

Which is a sum of cubes?
a a³ + 18
b a +9
c a² + 16
d a¹2 +8

Answer 1

a³ + 18

Step-by-step explanation:

The formula for cube volume is to cube the side meaning multiply the side by itself 3 times. Adding 18 could just be the other side, so this method would be the most correct.