Answer:
After expanding the polynomial
we get 
Step-by-step explanation:
We need to expand the polynomial 
Multiply the terms:

So, after expanding the polynomial
we get 
Answer is A m^7/n^2 -----------------
6x+2x=222, which means 8x=222. Thus, x=222/8, which is 27.75.
A full rotation is represented by 360 degrees or 2pi radians, so
2/3 of a full rotation is repr. by (2/3)(360 deg) or (2/3)(2pi rad). (Simplify these.)