$\sin\left(x+x\right)$
$xy^2y'=x+8$
$7a^2b+14a^3b-21a^5b$
$f\left(-3\right)=-\left(-3\right)^3+\left(-3\right)^2+2$
$-9\left(1+10a\right)-9\left(2+6a\right)$
$8m^2-10m+2$
$\left(3\sqrt{7}+10\sqrt{5}\right)\left(3\sqrt{7}-10\sqrt{5}\right)$
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