2.1.11.2 Solved using first_order_ode_autonomous

Entering first order ode autonomous solver

\[\begin {aligned} x^{\prime }&=2 \sqrt {x}\\ x \left (0\right ) &= 1\\ \end {aligned}\]

Integrating gives

\begin{align*} \int \frac {1}{2 \sqrt {x}}d x &= dt\\ \sqrt {x}&= t +c_1 \end{align*}

Applying the initial condition \(x \left (0\right ) = 1\), the solution becomes

\begin{align*} \sqrt {x} &= t +1 \\ \end{align*}

Solving for \(x\) from \(\sqrt {x} = t +1\) gives

\begin{align*} x &= t^{2}+2 t +1 \\ \end{align*}
Direction field with Isoclines \( x = t^{2}+2 t +1 \)

Summary of solutions found

\[ x = t^{2}+2 t +1 \]