$z^2+2z-8$
$3a-5b+4c+3a+7d+c$
$-9+c=-3c+1-6c$
$\int\left(\frac{sin\left(\frac{9}{x}\right)}{x^2}\right)dx$
$1+0-24+0-25$
$x^2+8x-10;\:x=2;\:y=10$
$-52+190+-156+51+-2545+-654$
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