SOLUTION: please help me with this.. 2 sqrt x+5 = 6

Algebra ->  Square-cubic-other-roots -> SOLUTION: please help me with this.. 2 sqrt x+5 = 6      Log On


   



Question 641772: please help me with this..
2 sqrt x+5 = 6

Found 2 solutions by DrBeeee, MathTherapy:
Answer by DrBeeee(684) About Me  (Show Source):
You can put this solution on YOUR website!
If you mean
(1) 2*sqrt(x) + 5 = 6
You get
(2) 2*sqrt(x) = 1 or
(3) sqrt(x) = 1/2
Squaring both sides yields
(4) x = 1/4
If you mean
(5) 2*sqrt(x+5) = 6
You get
(6) sqrt(x+5) = 3
Squaring both sides yields
(7) x + 5 = 9 or
(8) x = 4
Take your choice, (4) or (8)

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

please help me with this..
2 sqrt x+5 = 6

2sqrt%28x+%2B+5%29+=+6

sqrt%28x+%2B+5%29+=+3 ------ Dividing by 2

%28sqrt%28x+%2B+5%29%29%5E2+=+3%5E2 ------Squaring both sides

x + 5 = 9

x = 9 - 5

highlight_green%28x+=+4%29

You can do the check, I'm sure!!

Send comments and “thank-yous” to “D” at MathMadEzy@aol.com