SOLUTION: 5n^2 + 10n + 20=0

Question 872129: 5n^2 + 10n + 20=0
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
5(n^2 + 2n + 4)=0

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 -12 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 -12 is + or - .

The solution is

Here's your graph:

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