Which method is used to solve a first‑order linear differential equation of the form $\frac{dy}{dx}+P(x)y=Q(x)$?

Step-by-step solution

1. Identify the standard form $\frac{dy}{dx}+P(x)y=Q(x)$
2. Recall that the appropriate technique for this structure is the integrating factor method
3. Thus the correct answer is the integrating factor option

Concept tested: Solution technique for linear ODE

Published 2 September 2026 · Last updated 16 September 2026 · How this solution was prepared and checked

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