$2\left(-7x+8\right)+4$
$\lim_{x\to1}\left(x+1\right)lnx$
$5.5x-7=2.5x+2$
$35x+26y-40x-25y+16x-12y$
$-\left(3x+1\right)$
$\left(4a^2-5b^3\right)\left(2a^2-3b^3\right)$
$y^2-6y+5$
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