Q: Using Binomial Theorem, Prove that 2^3n-7n-1 is divisible by 49; n∈N

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Class XI_Binomial Theorem
Q: Using Binomial Theorem, Prove that 2^3n-7n-1 is divisible by 49; n∈N

Previous recorded questions and their links:
Q: To check if: 〖11〗^n-10n+1 is divisible by 100
2^3n-7n-1 is divisible by 99

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