What is the value of the function y equals 2x - 3 when x equals negative 1

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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.

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4