Asked by Shawn

Solve: x^2 +4x+1=0

Is the answer 2+-sqrt2?



Answered by Reiny
no,

x^2 + 4x = -1
x^2 + 4x <b>+ 4</b> = -1 <b>+ 4</b>
(x+2)^2 = 3
x+2 = ±√3

x = -2 ±√3

or use the formula, then simplify
Answered by Shawn
Thanks I understand now.
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