# The number of terms in the expansion of

Question:

The number of terms in the expansion of $\left\{\left(2 x+y^{3}\right)^{4}\right\}^{7}$ is ______________

Solution:

In {(2x + y3)4}7

n = ??

Since In (a + b)n ; number of terms is n + 1

∴ {(2x + y3)}28

Number of terms is 28 + 1 = 29