$\frac{m^2-16}{m-4}$
$\int_2^4sec^{-1}\sqrt{t}dt$
$\frac{4-\sin^2\left(x\right)-3\sin\left(x\right)}{\cos^2\left(x\right)}$
$60x^2+8x+2$
$1072+4835$
$\frac{6xy^2}{yz}$
$x^4-8x^2+20x^2$
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