SOLUTION: {{{ x^2-2x-3= sqrt( 4 ) }}}. I tried my best to do this but i cant figure this one out can you please help me.

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Question 874572: .
I tried my best to do this but i cant figure this one out can you please help me.
Found 2 solutions by Alan3354, mxgirl22:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!



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Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)
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=24 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 3.44948974278318, -1.44948974278318. Here's your graph:

============


Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)
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: 2.41421356237309, -0.414213562373095. Here's your graph:

=============
Check all the solutions, make sure they're not extraneous.
Answer by mxgirl22(39)   (Show Source): You can put this solution on YOUR website!








Now that we have the equation set to zero, we can use the quadratic formula.



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=16 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 3, -1. Here's your graph:
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