SOLUTION: I am not sure whether to use factoring or completing the square for this quadratic equation: 2x^2+10+11=0

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Question 49821This question is from textbook
: I am not sure whether to use factoring or completing the square for this quadratic equation: 2x^2+10+11=0 This question is from textbook

Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
2x^2 + 10x + 11 = 0
2x^2 + 10x = -11
x^2 + 5x = -11/2
(x + 5/2)^2 = 25/4 - 22/4 = 3/4
x + 5/2 = +- sqrt(3)/2
x = (-5 +- sqrt(3))/2
graph%28300%2C300%2C-9%2C1%2C-5%2C5%2C2x%5E2%2B10x%2B11%2C0%29