What is the value of this expression when a = 2 and b = -3?

Answer:
7
Step-by-step explanation:
(a^3 - b^3) / 5
Let a=2 and b = -3
Do the exponents inside the parentheses
(2^3 - (-3)^3) / 5
Then add
(8 - (-27))/5
Subtracting a negative is like adding
(8+27)/5
( 35)/5
7