$-0.6\:\left(1.2x\:+\:4.5\right)\:-\:3\:\left(2.8x\:-\:4\right)$
$\sqrt{64m^3n^9}$
$\int\frac{1}{3969+49x^2}\:dx$
$\left(6ad+\sqrt{2}\right)^2$
$2xz+z^2$
$3x^2\:-\:27x\:+\:42$
$y=3x^2+5x+8$
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