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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: 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) (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
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