Question

What is the fourth term in the expansion of (x + 2)^6?

Answer 1

use binomial theorem

(a+b)^n

a^n b^0 + a^(n-1) b^1 + ............ + a^0 b^n

Also use pascal triangle

Answer 2

1
1 2 1
1 3 3 1
1 4 6 4 1

1 5 10 10 5 1