SOLUTION: Solve by completing the square and then graph it. x2 + 8x + 12= 0

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Solve by completing the square and then graph it. x2 + 8x + 12= 0      Log On


   



Question 84255: Solve by completing the square and then graph it.
x2 + 8x + 12= 0

Answer by vertciel(183) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 + 8x + 12 = 0
(x^2 + 8x + 16)+ 12 - 16 = 0
x^2 + 8x + 16 - 4 =
x^2 + 8x + 12 = (x + 6)(x + 2)
Thus, the roots of the equation are -6 and -2.


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