6x2 – 7x – 13 = 0


(xvii) 6x2 – 7x – 13 = 0

Sol. 6x2 – 7x – 13 = 0

 6x2 – 13x + 6x – 13 = 0

 x(6x – 13) + 1(6x – 13) = 0

 (6x – 13) (x + 1) = 0

 6x – 13 = 0 or x + 1 = 0

 6x = 13 or x = –1


 x = 13/6  or x = –1


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