Nataleigh Costango

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I understand how to add and subtract polynomials, but how do you multiply them? Example: (x^2 -2x+1)(x^2 +x+2) Please list all of the steps that you would take to solve this. 

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How do you find a line that goes through a given point and is parallel or perpendicular to a given slope? Example: Through (-4,5) parallel to y = -2x - 3.