A rectangular goat pasture has dimensions represented by the expressions y - 4 and 4y^2-3y+5. Find the area of the pasture.

Given that the goat pasture is rectangular with the dimensions given by:

Length = (y-4) and Width = (4y^2-3y+5)

Thus the area of the pasture will be given:

Area=length*width

Area = (4y^2-3y+5) (y-4)

Area=y (4y^2-3y+5) - 4 (4y^2-3y+5)

Area=4y^3-19y^2+17y-20