Can you check my work? √(x+2) + 4 = x. Does x = 7?

Question

jim_thompson5910 · Answer

Let's check that potential answer

√(x+2) + 4 = x

√(7+2) + 4 = 7 .. replace each x with 7

√(9) + 4 = 7

3 + 4 = 7

7 = 7

so the answer x = 7 is confirmed

loser66 · Answer

@jim_thompson5910  when solving as quadratic, I cannot get that answer, why? Please, explain me

anonymous · Answer

@Loser66
did you square correctly?  did you get two answers?

loser66 · Answer

oh yea !@satellite73  my bad. I am sorry. XD

goformit100 · Answer

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