Question

what is the answer to (r-s)3 r2 if r = -3 and s = -4

Answer 1

(r-s)3 r2
Substitute the letters for numbers
(-3-(-4))3 (-3)2
Add what's in the parenthesis
(1)3 (-3)2
Multiply 3 by 1
3 (-3)2
Multiply -3 by 2
3*-6
Multiply
Final Answer: -18