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

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

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) (Show Source): You can put this solution on YOUR website!
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
RELATED QUESTIONS
Two students both solved the equation -4x-0.5=6 incorrectly. The work of each student is (answered by MathLover1)

In which line is a mistake first made when solving the quadratic equation by completing... (answered by jim_thompson5910)

Two engineering students are solving a problem leading to a quadratic equation. One... (answered by Theo)

In which line is a mistake first made when solving the following system of equations by... (answered by ikleyn,fractalier)

In which line is a mistake first made when solving the quadratic equation using the... (answered by josgarithmetic)

Solve the equation by finding the square root of both sides: {{{2x^2 = 32}}} (answered by drj)

Two students solved a problem involving a quadratic equation. The first student made an... (answered by ankor@dixie-net.com)

in a quadratic equation, a student made a mistake in copying the coefficient of x^(2) and (answered by ikleyn)

Hi, the equation is: X - 4*(square root X) = 32. I thought about squaring both sides to (answered by edjones,KMST)