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This demonstrates why symthetic division works when dividing by a simple binomial as in x + a or x - a. Then it shows how to fill in the answers for this type of question.
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Describes an algebraic method for finding what you need for your next score to achieve a certain average or mean.
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Another in a series aobut solvingi equations with multiple variables, this time taking two steps to do it/
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Multiplying both sides by the reciprocal of the variable's coefficient in order to get the variable alone and keep the equation balanced.
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A couple of examples that combine sign combinations for diviision and using Keep/Change/Flip to convert fractioinal division to multiplication.
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Conversion using long division if you don't have a calculator handy.
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