$\int\frac{9x\cos^2\left(7x^2\right)}{\sin\left(7x^2\right)}dx$
$\frac{x^2+x}{6x^2+8x}$
$sin\:t=\frac{2}{3}$
$-2g^2\left(-4g^2-6\right)$
$3\left(12\:+\:9x\right)$
$\int\frac{-2}{\sqrt{x^3}}dx$
$76 - 5 - 10 + - 3$
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