$144 \times 4 ^ { 4 } - 819 ^ { 4 } b ^ { 2 }$
$1+9^0$
$.60=\frac{e}{440}$
$1224\cdot259$
$\frac{x^2+6x+3}{x+1}$
$\left(\frac{4}{3}x-\frac{2}{5}\right)\left(\frac{4}{3}x+\frac{2}{5}\right)$
$-11-2d\ge1$
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