Prove the following by the principle of mathematical induction: $7^{2 n} + 2^{3 n - 3} . 3^{n - 1}$ is divisible 25 for all $n \in N ˙$

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Prove the following by the principle of mathematical induction:

7^{2 n} + 2^{3 n - 3} . 3^{n - 1}

is divisible 25 for all

n \in N ˙

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Question Text

Prove the following by the principle of mathematical induction:

7^{2 n} + 2^{3 n - 3} . 3^{n - 1}

is divisible 25 for all

n \in N ˙

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