Tricky DS question..

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Source: — Data Sufficiency |

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by chidcguy » Thu May 29, 2008 4:47 pm
x ^ 2 + 3x + C = (x+a) (x+b) = x^2 + (a+b) x + ab

a=1 means b=2.

because the coefficient of x is nothing but sum of a and b, C is the product of a and b a+b =3 and C=ab

b=2 means a=1