hba
If x-1,x+2 and x+1 are all factors of a polynomial P(x) of degree 3,which of the following must also ve a factor of P(x) ?
1)x^2+3x+2
2)x^2-1
3)x^2+x-2
A)3 only
B)2 only
C)1 only
D) all three are factors.
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tcarroll010
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factor each of a, b, and c to see what factor them. That will give you your answer, because if the factors of any or all of a, b, and/or c are the ones in the problem, then that selection is also a factor of P.
hba
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I only get 30 seconds per question,I dont think i will be able to do it in such a short time.
tcarroll010
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So, start with selection 1) . What are its factors?
hba
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For the first one,
(x+1) (x+2)
tcarroll010
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Good!, so 1) is a factor of P. And just check 2) and 3).
hba
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For the second one ,
(x+1) (x-1)
tcarroll010
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Good! So, 2) is a factor. Hint: if 2) works, then 3) automatically works because there is no selection for only 1) and 2).
hba
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For the third one,
(x+2) (x-1)
hba
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So you can clearly see that All three are factors @tcarroll010 Understood!
tcarroll010
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Excellent!
hba
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Thanksssss Yuuuu ZZ :D
tcarroll010
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Great job!
hba
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Yuu Great Techesss the Mathsss.
hba
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You are Englished :D
tcarroll010
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thxxxxxxx muccccchhhhhh
hba
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English like an elephant egg.
hba
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Difficult the sunn of the bacha.
hba
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@Zarkon I hope i am not in trouble :D
Zarkon
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only a little ;)
hba
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Sorry.
hba
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Just give me One last chance.
Zarkon
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I'll think about it :)
hba
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Omg,I am so dead :(
Zarkon
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lol
hba
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Haha :D