Answer
$2^{}+2^{2}\times 2^{2}+3^{2}\times 2^{3}+\ldots +10^{2}\times 2^{10}$
Work Step by Step
$\sum ^{10}_{n=1}n^{2}2^{n}=1^{2}\times 2^{1}+2^{2}\times 2^{2}+3^{2}\times 2^{3}+\ldots +10^{2}\times 2^{10}$
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