Thread: calc quadratic?!?!?
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Old August 26th, 2008, 05:12 AM
Simplicity Simplicity is offline
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This is Second order differential equation. Have a read on these sites:

Second Order Differential Equations - Generalities
Homogeneous 2nd-order differential equations
Notes on 2nd order d.e.'s
PlanetMath: second order linear differential equation with constant coefficients
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