roots

Asked by  | 26th Aug, 2008, 10:55: AM

Expert Answer:

   the equation  3x2 --kx   --2 =0  has  one of the root  as 2 ,  3(2)2  --k (2)  --2 ==0   ====>   12 - 2k - 2 = 0 ==> k = 5  the equation  becomes  3 x2  --5x -2 ==0  the  factors  are  (3x  +1 ) ( x --2) ==0  therefore the other  root of the equation is   -- 1 /3  

Aswered by  | 26th Aug, 2008, 04:42: PM

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