SOLUTION: x^2-4x+2 = 0 5x^2 - 2 = 2x 3x^2 - 6x = 2

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Question 103618: x^2-4x+2 = 0
5x^2 - 2 = 2x
3x^2 - 6x = 2
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!
1.
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 : .

Discriminant d=8 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 3.41421356237309, 0.585786437626905. Here's your graph:


2. =>
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 : .

Discriminant d=44 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 0.86332495807108, -0.46332495807108. Here's your graph:


3. = >
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 : .

Discriminant d=60 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 2.29099444873581, -0.290994448735806. Here's your graph:
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