Question

one zero of polynomial 2x²-8x-m is 5/2 . find the other zero

Answer 1

let other root =y

product of roots =(-m/2)

$( \frac{5}{2} )(y) = - \frac{m}{2}...(1) \\ \\ sum \\ \frac{5}{2} + y = 4 \\ y = 4 - \frac{5}{2} = \frac{3}{2}$