Question 858163: Solve the equation. Check for any extraneous solutions.
(sqrt(2-x)) = x+4 Found 2 solutions by mananth, MathTherapy:Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
square both sides of the equation
(2-x) = (x+4)^2
2-x= x^2+8x+16
x^2+9x-14=0
x^2+9x =14
x^2+9x+(9/2)^2 =14 +(9/2)^2
(x+9/2)^2 = 14+(81/4)
(x+9/2)^2 = (56+81)/4
(x+9/2)^2 = (137)/4
take square root
x+9/2 = +/-sqrt(137)/2
x= -9/2 +/- sqrt(137)/2
(EXRANEOUS)
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