$15-223$
$x^2+x+5=0$
$\int\left(\sqrt{4x+7}\right)dx$
$x^2+p^2-q;\:x=2,p\:=3,q=9$
$2\left(-2\right)^3+3\left(-1\right)^3-6\left(-1\right)$
$225\frac{225}{5}$
$12+9x-\left(19-6x\right)$
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