$\int\frac{7\left(1+s\right)}{s\left(s^2+8s+7\right)}ds$
$8.857+52.6$
$4x^2+36x+16$
$4x\:+\:5=3x+20$
$\left(\frac{7^2-5^2}{6}\right)^3$
$-\frac{5}{2}\cdot\frac{2}{5}$
$9x^2-18x-16$
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