standard_description: Choose trigonometric functions to model periodic phenomena with specified amplitude, frequency, and midline.
problem_activity: Problem 1
How do the following problems represent differences of two squares? Factor to show the relationships.
$${4x^4-1}$$
$${x^{10}-36}$$
Problem 2
Factor the following functions and name all of the real and complex zeros.
$${18x^4-32}$$


aligns: no