Answer
$5+ce^{-x^{2}}$
Work Step by Step
Solve by integrating factor, I(x)
I(x) = $e^{\int2xdx}$
= $e^{x^{2}}$
$$e^{x^{2}}y= \int e^{x^{2}}10xdx$$
$$e^{x^{2}}y= 5\int e^{x^{2}}2xdx$$
$$e^{x^{2}}y= 5e^{x^{2}}+c$$
$$y= 5+ce^{-x^{2}}$$