Answer:
y = 4x^2 -31x -8
Step-by-step explanation:
The roots tell you that (x +1/4) and (x -8) will be factors. We can eliminate the fraction by multiplying that factor by 4. Then our polynomial with integer coefficients is ...
(4x +1)(x -8) = 4x^2 -31x -8
As an equation, this could be ...
y = 4x^2 -31x -8
