$4+80y+400y^2$
$\left(4x^2+20x+25\right)-\left(4x^2-16\right)$
$m^2-41m-400$
$11q+5p-9q+7p$
$1.4+x=25\:$
$\int\left(3e^{3x}sin\left(e^{3x}\right)\right)dx$
$\left(m+3n\right)^7$
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