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Let f(x)=x^2+b1x+c1 andg(x)=x^2+b2x+c2. ...

Let f`(x)=x^2+b_1x+c_1` and`g(x)=x^2+b_2x+c_2`. When f(x)=0 then the real roots of f(x) are `alpha,beta` and when g(x)=0 then the real roots of g(x) are `alpha+h,beta+h`. Minimum value of f(x) is `1/4` and when x=`7/2` then value of g(x) will be minimum.
Value of `b_2` is-

A

-5

B

9

C

-8

D

-7

Text Solution

Verified by Experts

The correct Answer is:
D
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