$a+b;a=-10$
$5x+3x+4+7b$
$\left(3x^3+y^5\right)^3$
$b^4-7b^2+260$
$\frac{dy}{dx}=x^2e^{-4x}-4y$
$4a^4+8a^2+4$
$h\left(x\right)=x^2+3x-18$
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