The so-called error function defined as: $\operatorname{erf}(x)=\frac{2}{\sqrt{\pi}}\int_0^xe^{-t^{2}}dt$

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The so-called error function is defined as:

$$\operatorname{erf}(x)=\frac{2}{\sqrt{\pi}}\int_0^xe^{-t^{2}}dt$$

show that the function $y(x) = e^{x^2}\operatorname{erf}(x)$ satisfies the differential equation:

$$\frac{dy}{dx}=2xy+\frac{2}{\sqrt{\pi}}$$

I have no idea how to start if someone could show me that would be greatly appreciated.

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By using the formula $(uv)'=u'v+uv'$, you just have (prime = diff. with respect to x). $$ \left(e^{x^2}\times\frac{2}{\sqrt{\pi}}\int_0^{{x}}e^{-t^{2}}dt\right)'=2xe^{x^2}\left(\frac{2}{\sqrt{\pi}}\int_0^{{x}}e^{-t^{2}}dt\right)+\left(e^{x^2}\times\frac{2}{\sqrt{\pi}}e^{-x^{2}}\right)=2xy+\frac{2}{\sqrt{\pi}} $$ since $$ \left(\int_0^{{x}}e^{-t^{2}}dt\right)'=e^{-x^{2}}. $$