determine the nature of the solutions of the equation x^2-20=0
B bottomup42 New member Joined Sep 10, 2008 Messages 3 Sep 14, 2008 #1 determine the nature of the solutions of the equation x^2-20=0
D Deleted member 4993 Guest Sep 14, 2008 #2 Re: equation bottomup42 said: determine the nature of the solutions of the equation x^2-20=0 Click to expand... Please share with us your work/thoughts - so that we know where to begin to help you.
Re: equation bottomup42 said: determine the nature of the solutions of the equation x^2-20=0 Click to expand... Please share with us your work/thoughts - so that we know where to begin to help you.
L Loren Senior Member Joined Aug 28, 2007 Messages 1,299 Sep 14, 2008 #3 Re: equation In your equation x^2-20=0, a=1, b=0 and c=-20. The quadratic formula is \(\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\). The discriminant is b[sup:1mfi5zor]2[/sup:1mfi5zor] - 4ac. Plug your values of a, b and c into the given info above and see if you can answer your own question.
Re: equation In your equation x^2-20=0, a=1, b=0 and c=-20. The quadratic formula is \(\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\). The discriminant is b[sup:1mfi5zor]2[/sup:1mfi5zor] - 4ac. Plug your values of a, b and c into the given info above and see if you can answer your own question.
