Answer
$\int^5_{-7}(x^2-3x)$
Work Step by Step
Intepreting limits of sum as Integrals
$\lim\limits_{||p|| \to 0} \Sigma_{k=1}^n( c_k^2-3c_k) Δx_k$
-where p is a partition of[-7,5]
=$\int^5_{-7}(x^2-3x)$
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