Question

In the expansion of $10^{n} + 3(4^{n + 2}) + 5$ the term independent of x is.

• A. Non existent
• B. $(\sqrt{2} + 1)^{6} - (\sqrt{2} - 1)^{6} =$
• C. 2268
• D. – 2268

Answer 1

Answer: (D)

– 2268

Answer 2

$(x + 3)^{6}$ = $x^{32}$

For term independent of x,

$\left( x^{4} - \frac{1}{x^{3}} \right)^{15}$

$15C_{4}$.