$3-w+-9w+-7$
$5+\left(x-3\right)+6$
$-4x^2-32x+20$
$3x^2+9x+2x+6$
$\lim_{x\to\frac{\pi}{2}}\left(1+cos\left(x\right)\right)^{\frac{1}{cos\left(x\right)}}$
$\frac{4092}{4}$
$-10.4-12.8-5.4$
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