$\left(16-3x\right)^{-0.25}$
$-136-147$
$\frac{8x^2-4x+2}{2x+3}$
$\left(9x^2+5x\right)x\left(9x^2-5x\right)$
$2\cos\left(x\right)^2-\sqrt{3}\cos\left(x\right)$
$25t^2-45t+9$
$\frac{secx-cosx}{secx+cosx}$
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