$6d^2-96$
$3sinx^2-sinx=2$
$2x^2+16x=0$
$\lim_{x\to1}\left(\frac{3x^2-7x+4}{x-1}\right)$
$\cot\left(c\right)+\tan\left(c\right)=2\csc\left(2c\right)$
$y^2-2y+6$
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