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Polynomial/f(0) is -1, f(1) is 7,f(2) is 21, f(-1) is -3/Exercise
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Find a
polynomial
f
{\displaystyle {}f}
of degree
≤
3
{\displaystyle {}\leq 3}
for which
f
(
0
)
=
−
1
,
f
(
−
1
)
=
−
3
,
f
(
1
)
=
7
,
f
(
2
)
=
21
{\displaystyle f(0)=-1,\,f(-1)=-3,\,f(1)=7,\,f(2)=21}
holds.
Create a solution