If one zero of the polynomial 5×2-(k+2)x+3 is negative of the other, then find k

1 thought on “If one zero of the polynomial 5×2-(k+2)x+3 is negative of the other, then find k”

1. Answer:

   let the one zero of the polynomial is a

   therefore the other is -a

   polynomial=5x^2-(k+2)x+3

   the sum of the zeros

   a-a=-(k+2)/5

   0=-k-2/5

   -k-2=0

   k=-2

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