Write a function that describes a relationship between two quantities. Two polynomial functions are given.
d(x) = 23– 2 + 12
c(y)=5y² - 9
Find 3d(x) times c(y) and write an equivalent expression.

Factor this polynomial completely x^2-64

Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x â’ 1 , y = 0, x = 5; about the x-axis v = sketch the region. sketch the solid, and a typical disk or washer.

Lena draws a square with an area that is greater than the area of rectangle b. what are two possible side lengths of lena's square? explain.