$2 + 5 - ( 1 - 5 ) - 2 + ( 2 + 3 )$
$125m^4-20n^4$
$\frac{1}{3}x^2+\frac{3}{2}x-56=0$
$\left(p+3q-\frac{1}{3}z\right)^2$
$6^2-4^2$
$\left(1-y\right)y^{-2}dy=x\sin\left(x\right)dx$
$3x+4=x+6$
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