SOLUTION: solve the quadratic equation x-2x+4=0

Algebra.Com
Question 263703: solve the quadratic equation x-2x+4=0
Answer by JBarnum(2146)   (Show Source): You can put this solution on YOUR website!
x-2x+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:


RELATED QUESTIONS

Solve the following quadratic equation... (answered by jim_thompson5910)
Solve the following equation for X by using the quadratic formula. 4x^2+2x-4=0 (answered by solver91311)
Please solve the quadratic equation: x^2+12x+4=0 (answered by Edwin McCravy)
1) Solve the quadratic equations by factoring: 5x² = 125 2) Solve the quadratic... (answered by checkley71)
What is the Quadratic Formula Answer to this: If the quadratic formula is used to... (answered by Alan3354)
use factoring to solve the quadratic equation... (answered by lwsshak3)
Please help with this: Use the Quadratic Formula to solve the quadratic equation.... (answered by adamchapman)
Solve the following quadratic equation by factoring (find zeroes)... (answered by Boreal,solver91311)
Solve the following equation for x by using the quadratic formula: 2x^2 + 8x + 3 =... (answered by stanbon)