Rozwiąż równania różniczkowe:
1. y' + y = 4x * e^(-x)
2. y" + 2y' - 3y = 0
1. y' + y = 4x * e^(-x)
2. y" + 2y' - 3y = 0
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1. y' + y = 4x * e^(-x)
y = C1 * e^x + 4/e * x * e^(-x)
2. y" + 2y' - 3y = 0
y = C1 * e^(-3x) + C2 * e^x