2x^2=-4x-1 using quadratic formula?

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Answer 1 · 2017-12-04T19:09:50

#1/2(-2+-sqrt(2))#

Rearrange the equation

#2x^2+4x+1=0#

The equation above is a form of the general quadratic equation

#ax^2+bx+c#

Substitute values in the quadratic formula
On the calculator it will give the answer:

#1/2(-2+-sqrt(2))#