Hermeezey
Saw this today and realized I didn't know how to solve it:
A polynomial with nonnegative integer coefficients has P(0) = 3, P(1) = 8, P(2) = 39,
and P(3) = 144. Find P(-2)
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cathyangs
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hm...does it tell you what type of polynomial it is?
cathyangs
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*meaning what the greatest power is.
Hermeezey
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nope, that was all that the problem had. I deduced it must be degree 4 or less, given p(1) = 8 and p(2) = 39 and all the coefficients have to be positive.
cathyangs
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AHAH! :D I believe it's 8x^3-11x^2+8x+3 :)
cathyangs
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...well was my math right? Or should I check?
cathyangs
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...*dramatic pause*
*decides to check math.*
Hermeezey
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haha you wanna show me your work? i know its a lot to type though.
cathyangs
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+_+
can I just explain it?
Hermeezey
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oh wait its non-negative coeffecients
-11x^2 is a negative coeffecient :(
cathyangs
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X.X.
cathyangs
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I don't see another way that works.
Hermeezey
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haha its ok.
cathyangs
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sorry T.T I'll give this to my teacher.