Question

What are the steps to solve

`\sqrt{20 {k}^(3) }`

Answer 1

`\bf √(20k^3)\qquad \begin{cases} 20=2\cdot 2\cdot 5\\ \qquad 2^2\cdot 5\\ k^3=k^(2+1)\\ \qquad k^2\cdot k^1 \end{cases}\implies √(2^2\cdot 5\cdot k^2\cdot k)\implies 2k√(5k)`