$13x-13$
$\left(w^{14}\right)^{\frac{1}{4}}$
$4\cos^2\left(x\right)-4\sin^2\left(x\right)=4-8\sin^2\left(x\right)$
$7x^2-14x+1$
$4x^2-12x-16=0$
$4x-7=3x-1$
$2\pi r^2+500\pi r$
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