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Q.

If f(x)=(x2-3x+2)(x2-6x+p) and g(x)=(x2-4x+3)(x2-8x+q) then the value of 𝑎  and 𝑏  , if (x-1)(x-2) is H.C.F of f(x) and g(x) is

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a

p=3,q=10

b

p=1,q=9

c

p=9,q=8

d

pR&q=12

answer is D.

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Detailed Solution

f(x)=(x2-3x+2)(x2-6x+p)

=(x-1)(x-2)(x2-6x+p)

g(x)=(x2-4x+3)(x2-8x+q)

g(x)=(x-1)(x-3)(x2-8x+q)

Given H.C.F  is (x-1)(x-2)

∴  The possible value of 'p'  is any real value p ∈ R

If (x2-8x+q)  is divisible by (x-2)

then 4-16+q=0

q=12

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