Question

sqaure root of (2x+6) minus square root of (x+4)=-1

Answer 1

\[\sqrt{2x+6}-\sqrt{x+4}=-1\]
To ease up on the calculations, re-order like so:
\[\sqrt{2x+6}+1=\sqrt{x+4}\]
Raise both sides to the power of 2:
\[\left( \sqrt{2x+6}+1 \right)^2=x+4\]
Try to continue from here.