√(2x+3) - √(x+1) = 1

I know the answers are that x= -1, and 3, but I don't know how tf you get 3 because I only get -1. Pls help lol 💀

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Prisoner619 · 26-30, M

You square on both sides twice resulting in a quadratic equation with two solutions.

Sorry I cannot explain this on paper now