$\left(m^3+4m^2+5m+2\right)\left(m-2\right)$
$-45+25-45-52+74-25$
$\frac{1}{1+sin^2\left(x\right)}+\frac{1}{1+csc^2\left(x\right)}$
$+4-17-20+8+16$
$6x^1ab-5xa^9b^3+x^2az$
$\sec\left(\frac{90}{\frac{1}{64}.48}\right)$
$\left(2x-5y\right)\left(2x+8y\right)$
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