plz answer...

Asked by  | 23rd Jun, 2009, 07:29: PM

Expert Answer:

a root of an equation must satisfy the equation, i.e. after substituting the value of the root in place of the variable, we must get,


so in this case,

 by substuting,x=2/3

we get,





 by substituting x = -3

we get,


Solving both you can find a and b.

Answered by  | 24th Jun, 2009, 12:33: AM

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