SOLUTION: A student solved the quadratic equation by finding the square root of both sides. In which line is a mistake first made? b^2 - 4b + 4 = 16 Line 1:(b - 2)^2 = 16 Line 2:b - 2

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: A student solved the quadratic equation by finding the square root of both sides. In which line is a mistake first made? b^2 - 4b + 4 = 16 Line 1:(b - 2)^2 = 16 Line 2:b - 2      Log On


   

Question 1038252: A student solved the quadratic equation by finding the square root of both sides. In which line is a mistake first made?
b^2 - 4b + 4 = 16
Line 1:(b - 2)^2 = 16
Line 2:b - 2 = 16
Line 3:b = 18
Answer by Alan3354(69443) About Me  (Show Source):
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A student solved the quadratic equation by finding the square root of both sides. In which line is a mistake first made?
b^2 - 4b + 4 = 16
Line 1:(b - 2)^2 = 16
Line 2:b - 2 = 16 *********** should be sqrt(16) = ±4
Line 3:b = 18