$-10\left(-2\right)^2-7\left(-2\right)+7$
$\left(4x+2\right)-\left(x-2\right)$
$\csc\left(x\right)=\frac{1}{-\frac{6}{7}}$
$\frac{x^7-1}{x+1}$
$2\sqrt{y-1}+c=x^2+c$
$\int\frac{10x+6}{\left(x-3\right)\left(x+1\right)}dx$
$\int\left(\frac{5^x-5^{-x}}{5^x-5^{-x}}\right)dx$
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