$-12c^2-2c^2$
$2x^2+8x-64$
$21\frac{1}{4}x^2-2$
$\frac{dy}{dx}=2y^3-3y^2-2y$
$k\cdot cos\left(v\right)\cdot\left(\left(b+k\cdot cos\left(v\right)\right)\cdot sin\left(u\right)\right)$
$35+30s-45t$
$3\left(x^2+1\right)=5\left(1-x\right)$
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