The area of a square, in square units, is 38 more than 10 times the length of a side of the square, in units.
Find all possible values for the side length of the square.
This isn't hard to do, we just have to set up an equation.
First, let s be the sidenlength of a equation.
\(s^2 = 10s + 38 \\ s^2 - 10s = 38 \\ s^2 -10s + 25 = 38 + 25\)
\((s - 5)^2 = 63 \)
\(s - 5 = \sqrt{63}\)
\(s = \sqrt{63} + 5\)
The other possible equation would get a negative value, but a sidlength can't be negative, so we reject that possibility.
So we have \(s = \sqrt{63} + 5\)
Thanks! :)