Find the product of (x − 8)^2 and explain how it demonstrates the closure property of multiplication.

x^2 − 64; is a polynomial
x^2 − 16x + 64; is a polynomial
x^2 − 64; may or may not be a polynomial
x^2 − 16x + 64; may or may not be a polynomial

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)