Question

Algebra 2 help:

Solve. Check for extraneous solutions.

5√x + 7 = 8

Answer 1

I know I have to isolate 5√x to get 5√x = 1, but where do I go from there?

Answer 2

Divide 5 on both sides..

Answer 3

Alright; I now have √x = 1/5

Though, the final answer (I have the key) is 1/25. Is there something else that I'm missing?

Answer 4

Now you should take square on both sides to get rid of sqrt on left.

Answer 5

Oh, alright. I got it, thank you! :)