Vlad owns a paving business. He quotes prices to his customers based on area. He has determined that the area of a new customer’s driveway is equal to [math]9x^2 – 9x – 15x + 15[/math] square feet. Simplify this expression by combining like terms.
[list=1] [*]Determine which terms are like terms. [*]Combine each set of like terms. [*]Rewrite the expression with the combined like terms. [/list] This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on their resources.