$x^2\:+\:4y^2\:+\:5z^2\:=\:6\:$
$2545+986+1350$
$\left(x^2+y\right)\left(x^2+2y\right)$
$12a-27$
$\left(4x+1\right)\cdot\left(4x-1\right)$
$5\left(g-3\right)=4\left(g+4\right)$
$- 310 + 245 - 138 + 657 - ( - 183 )$
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