$1-1-1+1+1+-1-1+-1+1$
$1-3+4-3-1+2$
$\left(\frac{1}{2}a+2\right)^5$
$\int6\cos^4\left(6x\right)\sin\left(6x\right)dx$
$y^2+1y+4$
$3x+1=1$
$\left(7a^2+8\right).\left(7a^2-8\right)$
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