$25a^2+30a+9$
$\left(e^y+1\right)^2e^{-y}dx=\left(e^x+1\right)^3e^{-x}dy$
$\log_b\left(27\right)$
$-1.6\left(-2.9\right)$
$3x\:+\:y\:+\:1+3x\:+\:y\:+\:1+6x\:+\:2y\:+\:5+6x\:+\:2y\:+\:5$
$\left(2m-2\right)\left(2m+9\right)$
$3x^2-147=0$
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