$49x^2+28x+4-121$
$\left(4\frac{1}{2}\right)+8\left(\frac{1}{4}\right)\left(1^2+2^2\right)\left(6\frac{2}{3}\right)$
$\int\frac{\sqrt{16-9x^2}}{x^2}dx$
$\lim_{x\to\frac{3\pi}{2}}\left(1+\frac{\sin\left(x\right)}{\cos\left(x\right)}\right)$
$\sqrt{3}e^{2x}\cdot\:\:sin\left(x\right)+e^{2x}\cdot\:\:cos\left(x\right)$
$5n^2-5=0$
$\left(-2\right)-\left(-6\right)-\left(-14\right)-\left(-15\right)+2$
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