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If-f-x-x-4-ax-3-bx-2-cx-d-f-1-5-f-2-10-f-3-15-find-f-9-f-5-

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Question Number 120706 by ZiYangLee last updated on 02/Nov/20
If f(x)=x^4 +ax^3 +bx^2 +cx+d f(1)=5, f(2)=10, f(3)=15 find f(9)+f(−5).
Iff(x)=x4+ax3+bx2+cx+df(1)=5,f(2)=10,f(3)=15findf(9)+f(−5).
Commented by liberty last updated on 02/Nov/20
f(x)=x(x−1)(x−2)(x−3)+5x → { ((f(9)=9.8.7.6+45=3,069)),((f(−5)=(−5)(−6)(−7)(−8)−25=1,655)) :} f(9)+f(−5)= 3,069+1,655=4,724
f(x)=x(x−1)(x−2)(x−3)+5x→{f(9)=9.8.7.6+45=3,069f(−5)=(−5)(−6)(−7)(−8)−25=1,655f(9)+f(−5)=3,069+1,655=4,724

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