SOLUTION: I submitted a similar problem earlier, but it had a typo and could not be understood. I'm going to retype the problem with hopefully no typos this time. Could you please help me so

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: I submitted a similar problem earlier, but it had a typo and could not be understood. I'm going to retype the problem with hopefully no typos this time. Could you please help me so      Log On


   

Question 962772: I submitted a similar problem earlier, but it had a typo and could not be understood. I'm going to retype the problem with hopefully no typos this time. Could you please help me solve this quadratic equation using completing the square method? x^2+5x+6=0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve this quadratic equation using completing the square method?
x^2+5x+6=0
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x^2+5x = -6
a = 1, b = 5
Add (b/2a)^2 to each side
x^2 + 5x + (5/2)^2 = -6 + (5/2)^2
x^2 + 5x + 25/4 = -6 + 25/4 = 1/4
(x + 5/2)^2 = (1/2)^2
x + 5/2 = 1/2
x = -2
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x + 5/2 = -1/2
x = -3