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Q.

If px+q(2x3)2=12x3+3(2x3)2 then p,q are roots of quadratic equation is

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a

x22x=0

b

x2+x2=0

c

x23x+2=0

d

x2+2x=0

answer is A.

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Detailed Solution

px+q(2x3)2=1(2x3)+3(2x3)2

px+q=2x3+3

px+q=2x

Comparing coefficients, p=2,q=0

Now p+q=2 and pq=0

 Quadratic equation k[x2(p+q)x+pq]=0

k[x22x+0]=0

If k=1, then the equation is

x22x=0

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