How many and of what type are the solutions to x2 + 2x + 4 = 0? Help please @dpaInc

Question

anonymous · Answer

@Hero

anonymous · Answer

@Mertsj Help! please. :(

precal · Answer

do you have a graphing calculator?

anonymous · Answer

No.

precal · Answer

can you use one, or I should ask are you allowed to use one?

anonymous · Answer

It doesnt work on this one. and yes im allowed. http://www.geogebra.org/webstart/geogebra.html

precal · Answer

do you know how to use the quadratic formula?

anonymous · Answer

not very well.

precal · Answer

can you tell me what a, b, and c are?
a=         b=       c=

precal · Answer

I will help you learn the quadratic fomula, but you have to answer my questions

mertsj · Answer

The discriminant is b^2-4ac
if the discriminant is 0 there is 1 real root
If the discriminant is positive, there are 2 real roots
If the discriminant is negative, there are no real roots but there are 2 complex roots

mertsj · Answer

So you see, it's all up to b^2-4ac.  We had better find out what it is.

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