Question

2sqrt{x-1}+1=x

Answer 1

* 4x-4 = x^2
* x^2 - 4x + 4 = 0 (Can you go now?)

Answer 2

nope lol

Answer 3

* Just remember to discard the negative solution about x

Answer 4

* Just remember to discard the negative solution about x because I think you are using the Real set of numbers and in this universe, sqrt is just for non negative numbers!

Answer 5

so the answer cant be negative?

Answer 6

x needs be 1 or greater than 1, because sqrt is just to zero or greater than zero, did you understand?

Answer 7

oh ok

Answer 8

so, if you try, you will find x1 = 0 and x2 = 2... so, as I said, which is our x?

Answer 9

2?

Answer 10

Yes!!! Congratulations!!!!

Answer 11

lol thnx