$2t^3+2t^2-4t-3t^3-9^2-6t+3t^2-5t+3$
$9x^2+15x+22\:x\:\:x+1$
$\sec\left(x\right)\left(\cot\left(x\right)+\sin\left(x\right)\right)$
$e^{8-2x}$
$\sin\left(2x\right)=1-\cos\left(4x\right)$
$x^2+2x=63$
$-10sin\left(wt+30\right)+20cos\left(wt-45\right)$
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