$2x\left(2x+5y\right)+2\left(2x+5y\right)$
$2x^2-5x+2$
$\int e^{\left(2x\right)}\cos\left(e^{\left(2x\right)}\right)dx$
$\frac{dy}{dx}\left(x^3-4y^2-\sin\left(xy\right)=3x^2y\right)$
$\lim_{x\to0}\left(x^2-x+1\right)$
$7+15e^{1-3x}=10$
$10+10b+8b+9b+7b$
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