what is the sum of the roots of 2x^2-6x-8?

the sum of the roots of 2x^2-6x-8 equals what ?
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1 Answer

you mean the sum of the factors of    2x^2  -  6x  -  8 ?   

if you factor 2x^2  -  6x  -  8   =   ( 2x  -  8 )   ( x  +  1 )

if you need their sum, that would be:    3x  -  7

 

by Level 4 User (5.6k points)

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