Question

The term independent of $x$ in the binomial expansion of $\left(1-\frac{1}{x}+3x^{5}\right)\left(2x^{2}-\frac{1}{x}\right)^{8}$ is :

• A. 400
• B. 496
• C. -400
• D. -496

Answer 1

Answer: (A)

400

Answer 2

General term of $\left(2x^{2}-\frac{1}{x}\right)^{8}$ is