Simplify then subtract.
49/12
Just mulitply the top and the bottom across.
7*7/4*3
4r^-3 * 2r^2 =
4*(2r^(-3+2))
= 4*2r^-1
= 4*2(1/r)
= 4*(2/r)
=8/r
Complementary means something is hard
Answer:
Step-by-step explanation:
