SOLUTION: how do I solve this y-2= sqrt(y+4)

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Question 318328: how do I solve this y-2= sqrt(y+4)
Found 2 solutions by scott8148, solver91311:
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
squaring ___ y^2 - 4y + 4 = y + 4

subtracting (y+4) ___ y^2 - 5y = 0

factoring ___ y(y - 5) = 0

y = 0

y - 5 = 0 ___ y = 5

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!





Square both sides:



Collect like terms on the left:



Now just solve the quadratic. You will get two roots, but one or both may be extraneous. Check both. Note is the POSITIVE square root.

John