I assume you mean \(\sqrt{p+a+r}=k\).
Whenever there is a square root symbol, you want to square the equation.
\((\sqrt{p+a+r})^2=k^2\)
This becomes \(p+a+r=k^2\), because the square root symbol is lifted.
Now we can add and subtract values on each side of the equation to find a. I think you can do that.
You are very welcome!
:P
I assume you mean \(\sqrt{p+a+r}=k\).
Whenever there is a square root symbol, you want to square the equation.
\((\sqrt{p+a+r})^2=k^2\)
This becomes \(p+a+r=k^2\), because the square root symbol is lifted.
Now we can add and subtract values on each side of the equation to find a. I think you can do that.
You are very welcome!
:P