Makayla43
Use the discriminant to determine the nature of the roots of 2x2 = 0.
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Makayla43
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2x^2=0
timo86m
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ok i'll give a hint but wont intervene and give it flat out
timo86m
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b and c are zero
Callisto
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@Makayla43 Time for you to try. What is the coefficient of x^2?
timo86m
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b^2 - 4ac|dw:1340769023413:dw|
Callisto
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Too many hints already...
farmdawgnation
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I'm inclined to agree.
Makayla43
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Omg. Forget this. I don't understand it and none of ya'll are helping. Bye.
Makayla43
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It's due tomorrow so I'm screwed.
Callisto
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You should tell us what you don't understand so that we can help.
Makayla43
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Everything.
freckles
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Can you evaluate what timo gave you?
Makayla43
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B^2-4ab. No.
Callisto
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Okay, let's start from the beginning.
You may take coefficient of a term as the number before the term.
For example coefficient of x in the term 8x is 8.
Now, in your question, the term is 2x^2. Can you identify the coefficient of x^2?
Makayla43
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No...
Callisto
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By the way, it's b^2 - 4ac, not b^2 - 4ab
Callisto
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Do you understand the example?
Makayla43
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I typed it wrong.
Makayla43
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No I do not.
Callisto
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Which part you don't understand?
freckles
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The coefficient is the constant multiple
freckles
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constants are numbers that don't change
Makayla43
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Everything.
Callisto
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Including?
freckles
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8x
8 is a constant
x is a variable
and actually 8 here is a constant multiple
and is therefore the coefficient of x
freckles
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8 here is called a constant multiple because it is being multiply by that variable
freckles
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So in 2x^2
What is the coefficient of x^2?
Callisto
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@Makayla43 are you still here?
Makayla43
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No.
timo86m
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:P lol
Callisto
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I wonder how you can respond when you're not here....
Back to the question, after @freckles 's detailed and clear explanation, which part you still don't understand?
nphuongsun93
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the i don't wanna study lol