SOLUTION: In which line is a mistake first made when solving the quadratic equation using the quadratic formula? 4s^2 + 100 = 40s Line 1:4s^2 - 40s + 100 = 0 line 2:s^2 - 10s + 25 = 0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: In which line is a mistake first made when solving the quadratic equation using the quadratic formula? 4s^2 + 100 = 40s Line 1:4s^2 - 40s + 100 = 0 line 2:s^2 - 10s + 25 = 0      Log On


   

Question 1038308: In which line is a mistake first made when solving the quadratic equation using the quadratic formula?
4s^2 + 100 = 40s
Line 1:4s^2 - 40s + 100 = 0
line 2:s^2 - 10s + 25 = 0
line 3: http://prntscr.com/bgx36s
line 4:http://prntscr.com/bgx3a8
line 5:s = -10 / 2
line 6: s = -5
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Line 3 is wrong. Numerator has an obvious sign mistake and also contains two discriminant mistakes.