Question

if x = -1/2 is a zero of polynomial p (x) = 8x3 -ax2-x+2 find value of a

Answer 1

Step-by-step explanation:

Given x=-1/2 is a zero of given equation so x=-1/2

Must be satisfied this equation

PUT x=-1/2 we get a=6

Answer 2

Answer:

a=4

Step-by-step explanation:

p(x)= 8x³- ax²+2

➜p(-1/2)= 8×-1/8 -a×1/4+2

➜-1-a/4+2=0

➜a=4