$2\sin^4x-\sin^2x=0$
$\int2\left(t+12\right)^2dt$
$8\sin\left(\frac{\pi}{2}+x\right)$
$\left(9r^2w^4\right)^4$
$w\left(z\right)=\frac{z^2+1}{z}$
$25x^{4}+100x^{2}y^{3}+100$
$x^2+4y^2+z^2=9$
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