Question

find the zeros of the polynomial 2x(square) - 2x -8 . also verify the relationship between zero and coefficient of polynomial

Answer 1

2x² - 2x - 8 =0

dividing by 2

x² - x - 4 = 0

x = -1 + √1-(-4)

first root,

= -1 + √5/2

other root,

= -1 -√5/2