1) D^2 (y) - dy = (1+e^x)^2 D^2 represents second order differential ie d/dx * d/dx
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Originally Posted by ceode 1) D^2 (y) - dy = (1+e^x)^2 D^2 represents second order differential ie d/dx * d/dx Reduce the order. Let $\displaystyle \displaystyle u = y'$, then you have $\displaystyle \displaystyle u' - u = (1 + e^x)^2$ This is a first order ODE, solve it for $\displaystyle \displaystyle u$. You will then be able to solve for $\displaystyle \displaystyle y$
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