What is the Coefficient of the 8th Term of the Expansion of (2x - 1/x)^10?
Problem
In the expansion of (2x - 1/x)10, find the coefficient of the 8th term.
| A. 980 | C. 960 |
| B. 970 | D. 990 |
Binomial Theorem
Find the term independent of x in the expansion of a given binomial
Problem
Find the term that is independent of x in the expansion of $\left( 2 + \dfrac{3}{x^2} \right)\left( x - \dfrac{2}{x} \right)^6$.
| A. 180 | C. -140 |
| B. 160 | D. -160 |