Please help me understand how to solve: 22n  +1 Note: The exponent 2# = 2 ∙ 2 ∙∙∙ 2, where the number 2 appears ? times as a multiplicand, should not be confused with the product 2?, where the number 2 is multiplied by the number ?. So, for example, 21 = 2 ∙ 2 ∙ 2 = 8 is not the same as 2 ∙ 3 = 6.

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