SOLUTION: can someone help me solve by completing the square? i don't understand 2x^2+10x+11=0

SOLUTION: can someone help me solve by completing the square? i don't understand 2x^2+10x+11=0

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Question 79244: can someone help me solve by completing the square? i don't understand
2x^2+10x+11=0
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
2x^2+10x+11=0
2(x^2+5x) = -11
x^2+5x+(5/2)^2= -11/2 + 25/4
(x+(5/2))^2 = 3/4
(x+(5/2)) = sqrt3/2 or (x+(5/2)) = -sqrt3/2
x=(-5+sqrt3)/2 or x=(-5-sqrt3)/2
=============
Cheers,
Stan H.
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