:Solve (D³ + 3D² + 3D + 1) y = e‐x
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Step-by-step explanation:
Given: (D3 − 3D2 + 3D − 1)y = 0
The auxiliary equation is m3 - 3m2 + 3m - 1 = 0.
(m - 1)3 = 0
m = 1, 1, 1.
The general solution is given by y = C.F
y = e^x[A + Bx + Cx2]
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