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Use partial fractions to solve the differential equation, and express your answer as $t$ in terms of $x$.
Mathematics 9709 · AS & A Level · Differential equations
Differential equations — practice question
The variables $x$ and $t$ are linked by the differential equation $\frac{dx}{dt} = x^2(1 + 2x)$, with the condition that $x = 1$ when $t = 0$.
Worked solution & mark scheme
This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Give a suitable partial-fractions form for $\frac{1}{x^2(1+2x)}$” …
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