Characteristic Equation: The given differential equation is a linear homogeneous ordinary differential equation with constant coefficients. The characteristic equation is found by replacing y with r3, y′′ with r2, y′ with r, and y with 1.Characteristic equation: r3+6r2+11r+6=0
Find Roots: We need to find the roots of the characteristic equation. We can try to factor it, looking for integer roots among the factors of 6 (the constant term).By trying possible roots, we find that r=−1 is a root because (−1)3+6(−1)2+11(−1)+6=−1+6−11+6=0.
Factorization: Now we can factor out (r+1) from the characteristic equation using polynomial division or synthetic division.(r+1)(r2+5r+6)=0
Further Factorization: The quadratic factor can be factored further: r + \(1)(r + 2)(r + 3) = 0\
General Solution: The roots of the characteristic equation are r=−1, r=−2, and r=−3.
General Solution: The roots of the characteristic equation are r=−1, r=−2, and r=−3.The general solution to the differential equation is a linear combination of exponential functions based on the roots of the characteristic equation:y(t)=C1e(−t)+C2e(−2t)+C3e(−3t)where C1, C2, and C3 are constants determined by initial conditions.
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