8 Second Order Equations with Repeated Roots See also: Section 3.4 in Boyce and DiPrima or 2.2.2 in Braun Solve the following differential equations: 8.1. 4y" +12y + 9y = 0 8.2. y' 6y +9y=0 8.3. 9y" + 6y + y = 0, y(0) = 1, y'(0) = 2 8.4. y' + 4y + 4y = 0, y(-1) = 2, y'(-1) = 1

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