Question

if one zero of the quadratic polynomial 2 x square - 8 x minus M is 5/2. find M and the value of other zero..

Answer 1

Heya !!




P ( X ) = 0



2X² - 8X - M = 0






P(5/2 ) = 2 × (5/2)² - 8 × 5/2 - M = 0






=> 2 × 25/4 - 20 - M = 0




=> 25/2 - 20 - M = 0




=> 25 - 40 - 2M = 2 × 0



=> -2M - 15 = 0






=> 2M = 15




=> M = 15/2




P ( X ) = 2X² - 8X - 15/2




Here,



A = 2 , B = -8 and C = -15/2




Sum of zeroes = -B/A




5/2 + Other zero = 4





Other zero = 4 - 5/2



Other zero = 8 - 5/2 = 3/2

Answer 2

Answer:

this is the answer ...............