Answer:
Let
3x + 5 = A
(x ? 1) (x + 1) + B(x + 1) + C(x ? 1)2
x
= 1 8 = 2B B = 4
x
= ? 1 2 = 4C C = 
x
= 0
5 = ?A + B +
C = ? A + 4 +
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