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Q.

If x2+px+q  is exactly divisible by x+2  and leaves remainder 5  when divided by x3 , then pq  is

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a

4

b

1

c

0

d

4

answer is C.

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Detailed Solution

p(x)=x2+px+q

p(2)=0

42p+q=0

2p+q=4

p(3)=5

9+3p+q=5

3p+q=4

Question Image

p=0  then q=4

pq=0+4=4

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