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Find \(\sum_{k = 0}^{10} (k + 2) \cdot 3 \cdot 2^k.\)

 Feb 9, 2018
edited by waffles  Feb 9, 2018
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∑(k + 2) *3* 2^k, k=0 to 10 =67,584

 Feb 9, 2018

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