$525-\:\:-22$
$\frac{\sqrt{a^2+3b^2}}{5a-3b}\:+\:\frac{a}{b}$
$\int_{-0.026}^{0.274}\left(\frac{3}{\left(-2\cdot x\right)-1}\right)dx$
$z^2-6z+10=0$
$xy+5=0$
$80ab+5+28ab+21+34c$
$7\sin^2x-4\sin x=1$
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