$-\left(d^{10}-2d^5+1\right)$
$tg\left(270+a\right)=-cotg\left(a\right)$
$4^2+4^{-2}$
$16y^2-24y$
$\left(2-m\right)\left(2-m\right)$
$2x\le7x-35-5a$
$12mn-8a^2+14+5a^2-7mn$
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