$49g^2+56gf+16f^2$
$\left(\cos\left(x\right).\cot\left(x\right).\sin^2\left(x\right)+\sin^3\left(x\right)\right).\sin\left(x\right)+\cot^2\left(x\right).\sin^2\left(x\right)$
$\left(16+2\right)\left(3\right)-5\left(-5+3\right)$
$\left(-10\right)\left(-18+7\right)$
$4x^2-8x-3$
$\int_1^z\left(\frac{x}{\left(1+2x^2\right)^2}\right)dx$
$r^2-22r$
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