$\int\frac{-3x^3}{\left(5x^2+49\right)^{\frac{1}{2}}}dx$
$3cos^2\left(x\right)-4cos\left(x\right)-4$
$\frac{x^n+1^n}{x-1}$
$-17+\left(-25\right)-\left(-46\right)$
$a^4x\:a^3$
$18a^2+48a-96$
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