SOLUTION: how do I solve this y-2= sqrt(y+4)
Algebra.Com
Question 318328: how do I solve this y-2= sqrt(y+4)
Found 2 solutions by scott8148, solver91311:
Answer by scott8148(6628) (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) (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

RELATED QUESTIONS
How do I solve-
sqrt (120x^2*y^7/ 8xy) (answered by Alan3354)
how do i do this problem?
Solve by graphing
{x+7=y... (answered by rapaljer)
how do I solve... (answered by richwmiller)
how do i solve this?... (answered by Alan3354)
How do I perform this operation?
4 / [sqrt(11) + sqrt(3)] – 2 / [sqrt(11) –... (answered by mananth)
How do I simplify this and solve for y?... (answered by tommyt3rd)
How do i do this ?... (answered by tommyt3rd)
how do i solve this problem |3(y+4)|=12
(answered by solver91311)
How do I solve... (answered by MathLover1,ikleyn,greenestamps)