?

Free Version

Upgrade subject to access all content

Difficult

Coefficient in an Expansion

COMBIN-AGQJ1D

What is the coefficient $c_6$ of $x^6$ in the expansion of:

$$(2x^2+x+5)^6=c_{12}x^{12} + c_{11}x^{11} + \cdots + c_0?$$

A

$209150$

B

$209151$

C

$209870$

D

$210625$

E

$1000000$

F

none of the above