Find the first four nonzero terms in a power series expansion about x = 0 for a general solution to the given differential equation. w" - 14x w' + w = 0 W(x) = +... (Type an expression in terms of a,...

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Extracted text: Find the first four nonzero terms in a power series expansion about x = 0 for a general solution to the given differential equation. w" - 14x w' + w = 0 W(x) = +... (Type an expression in terms of a, and a, that includes all terms up to order 3.)