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Let f(x) be the polynomial \(f(x)=x^7-3x^3+2.\)

 

If g(x) = f(x+1), what is the sum of the coefficients of g(x)?

 Mar 23, 2019
 #1
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incorrect answer deleted.  See answer #4

.
 Mar 23, 2019
edited by Rom  Mar 24, 2019
 #2
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it was marked as wrong when i entered two...

Guest Mar 23, 2019
 #3
avatar+6192 
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huh... turns out the answer is 106

 

I'll have to look at this one.

Rom  Mar 23, 2019
 #5
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getting old or something, see answer #4

Rom  Mar 24, 2019
 #4
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+1

g(1) is f(2), and the sum of the coeffcients is g(1), so the answer is 128 - 24 + 2 = 106. :)

 Mar 23, 2019

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