$e=\left(7\tan\left(80^{\circ}\right)-2\cot\left(80^{\circ}\right)\right)\left(\cot\left(10^{\circ}\right)+\tan\left(80^{\circ}\right)\right)$
$5\left(9+6\right)+3\left(10+2\right)$
$8b+64b$
$\frac{4^3}{2^6}$
$16x^2-81+x^2+5x+6$
$8x+10=-38$
$\left(3+3x^4\right)\left(3x^4-3\right)$
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