What are the zeros of the polynomial function f(x) = x3 + x2 − 20x?
a. 0, −5, −4
b. 0, −5, 4
c. 0, 5, −4
d. 0, 5, 4

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

Find the values of y: 3y^3(y^2+ 2/3y)=0