SOLUTION: x^2+2x+3=0

Algebra.Com
Question 5291: x^2+2x+3=0
Answer by ichudov(507)   (Show Source): You can put this solution on YOUR website!
Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation (in our case ) has the following solutons:



For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

The discriminant -8 is less than zero. That means that there are no solutions among real numbers.

If you are a student of advanced school algebra and are aware about imaginary numbers, read on.


In the field of imaginary numbers, the square root of -8 is + or - .

The solution is

Here's your graph:

RELATED QUESTIONS

x^2-2x-3=0 (answered by wuwei96815,rocfam_06)
(x^2-2x-3=0) (answered by jim_thompson5910,tutorcecilia)
x^2-2x-3=0 (answered by CharlesG2)
x^2-2x-3=0 (answered by mananth)
X^2+2x-3=0 (answered by Tatiana_Stebko)
x^2-2x-3=0 (answered by htmentor)
2x^2-x-3=0 (answered by ewatrrr)
x^2-2x-3=0 (answered by josgarithmetic,MathTherapy)
x^3 + 2x^2 - x -2 =... (answered by Earlsdon)