Question

When n= ?, one term in the expansion of (2x^2+3x+2)^n is 1024.

A. 4
B. 8
C. 9
D. 10

Answer 1

the last term in the expansion of (2x^2+3x+2)^n

is 2^10
and ....

we know 2^10 = 1024
(1 kb = 1024, recall your computer science stuff)

so n = 10