Input:
dsolve(ds(y,x,i)-2y-exp(x))
Write:
`dsolve(ds(y,x,i)-2y-exp(x))`
Output:
$$dsolve(\frac{d^{{i}}y}{dx^{{i}}} - 2\ y - exp(x))== -exp(x)+C_1\ E_{i} (2\ {x}^{i})$$
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