AP ICET 17 Sep 2021 Shift 2 Paper

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Question : 185 of 200

Marks: +1, -0

If

x+1

and

x-1

are factors of

x^{3}+2 x^{2}+a x+b

, then

(a, b)=

$(1,-2)$
$(-2,-1)$
$(-1,-2)$
$(-1,2)$

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