Expand (2x + 3)4 using the binomial theorem.

Here are the solutions to the exercises:

1) To expand $(2x + 3)^4$ using the binomial theorem, we use the formula $(a+b)^n = \sum_{k=0}^{n} \binom{n}{k} a^{n-k} b^k$.
Here, $a = 2x$, $b = 3$, and $n = 4$.

Step 1: Write out the terms of the expansion.

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