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Cassie GrecoAlgebra 2 & Trig ReviewAFTER THEY CLEAR YOUR CALCULATOR YOU MUST PERFORM THESE STEPS!!!!!!*****THEY WILL NOT TELL YOU HOW TO DO THIS*****MODE ? A+BIMODE DEGREE2ND CATALOG (SCROLL DOWN TO) DIAGNOSTIC ONUndefined FractionsA fraction is undefined when its denominator equals zero. Here you set the bottom equal to zero, then solve for x. Simplifying FractionsTo simplify a fraction containing variable expressions factor first. Adding and Subtracting ExpressionsWe can only add and subtract fractions with the same denominator. If the denominators are different you must find the least common denominator.Dividing FractionsMultiply dividend by reciprocal of divisor. ** KEEP-CHANGE-FLIP RULE!!!! KEEP the first fraction CHANGE to multiplication FLIP the second fraction***Complex Rational ExpressionsFractions whose numerator, denominator, or both contain fractions. To simplify a complex fraction first find the LCD of all the little fractions. Second multiply every term by the LCD. Third factor and reduce. Solving Rational ExpressionsThis contains one or more fractions. To solve: first find the LCD of all the fractions. Second, multiply every term by the LCD to remove fractions. Third, solve. Fourth, check. Fifth, reject any extraneous roots (any solution for which the equation is undefined is called an extraneous root.)Absolute Value Equations When solving an equation containing absolute value you must first isolate the absolute value then set up

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