1. (D2 – 9D)(D² – 8D + 7)y = 0 2. (D2 + 6D + 7)(D³ – 5D² + 6D)y = 0 3. y" - 7y' + 10 = 0, y(0) = 2 and y' (0) = 4 4. (D3 – 9D2 + 18D)y = 0, y(0) = 3, y'(0) = 5 and y"(0) = 6 5. (D* – 9D³)(D² – 2D + 1)y = 0 %3D %3D %3D %3D %3D %3D %3D

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