List all possible rational ! !
a-b-c-d?

±1,±5,±1/2,±5/2,±1/4,±5/4

Step-by-step explanation:

Given polynomial

4x^3+8x^2-x+5

as a(n)= 4

divisors of 4 = ±1,±2,±4

as a(0)= 5

divisors of 5= ±1,±5

finding possible roots

Factors of constant term(1,5)/Factors of leading coefficient(1,2,4)

±1,±5

±1/2,±5/2

±1/4,±5/4 !

i just took the test, the correct answer is .. 31.5 in.