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CBSE Class 10 Answered

quad. equation please help
Asked by | 05 Aug, 2008, 03:40: PM
answered-by-expert Expert Answer

                          aX2  +aX +3 =0  ,     X2  + X + b =0  are the 2 equations having the same roots  X= 1

 substituting X =1  in both equations ,

                     a + a + 3 =0 ==> a = -- 3/2

                     1  +1+b  = 0 ===> b = -- 2

    ab  = --3 / 2 x --2  = 3

                    ab ==3

 

 

 

Answered by | 05 Aug, 2008, 04:09: PM

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