Show that y = Cerx is a solution of y + ay + by = 0 if and only if r is a root of P (r)
Chapter 9, Problem 68(choose chapter or problem)
Show that y = Cerx is a solution of y + ay + by = 0 if and only if r is a root of P (r) = r2 + ar + b. Then verify directly that y = C1e3x + C2ex is a solution of y 2y 3y = 0 for any constants C1, C2. 69. A
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