if a,b the zeroes of thew polynomials 2xsq +5x =1 then the value of a+b+ab will be what

Asked by vikramsingh | 16th May, 2013, 11:35: PM

Expert Answer:

f(x) =  2xsq +5x -1 
Sum of roots = a+b = -5/2
Product of roots = ab = -1/2
hence, a+b+ab = -5/2-1/2 = 3

Answered by  | 17th May, 2013, 06:18: AM

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