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CBSE Class 11-science Answered

I f space o n e space o f space t h e space r o o t s space o f space t h e space e q u a t i o n space x squared space plus a x plus b equals 0 space a n d space x squared plus b x plus a equals 0 space i s space c o i n c i d e n t comma space t h e n space t h e space n u m e r i c a l space v a l u e space o f space left parenthesis a plus b right parenthesis space i s.
 
Asked by medha painuly | 11 Jun, 2014, 09:38: AM
answered-by-expert Expert Answer
By observation and substituting method we can see that x = 1 gives a + b + 1 = 0 in both equations which is same.
So x = 1 is the common root and a + b = -1 is the answer
Answered by Dharma Teja | 12 Jun, 2014, 01:34: PM

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