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