Week 3 DQ 3 - --+ = + 3w 11w 12w 6 1w 3-+ =-+ 3w 11w 3 w...

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Thread for Week 3 - Discussion Question #2 Please respond to DQ # 2 no later than Thursday (Week 3, Day 4). Give an example of a sum of two rational expressions with different denominators, then perform the operation by showing all the steps, including how you found the common denominator. Give another example of a sum, ratio, product, or different of two rational expressions for your classmates to solve. When might you use rational expressions in real life? + - - = + 52w 6 1w 1 1w 3 - + - - + - + = + 5w 12w 6w 1 2w 6w 12w 6 1w 3 - + - - + - + = + 5w 52w 6w 1 2w 6w 12w 6 1w 3
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Unformatted text preview: --+ = + 3w 11w 12w 6 1w 3-+ =-+ 3w 11w 3 w 12w 6--= +-3w2 2w 33 2w2 4w 6--= w2 6w 27 0 +- = w 3w 9 0 =- , w 3 9 =- w 3 is a extraneous solution when its plugged back in ( + ; =- , ) since it makes the denom zero in a case 2w 6 w 3 makes it undefined , so = w 9 FOR CLASS MATES-- -x 2x 6 4x Or if you are up to the challenge-- -=-x 2x 6 4x 24x2 6x SOLUTIONS ARE ATTACHED Rational equations and expressions are used in real life with several problems involving time. They are used all the time, since many formulas involve ratios....
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This note was uploaded on 04/20/2011 for the course MATH 116 taught by Professor Mcmillian during the Spring '09 term at University of Phoenix.

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Week 3 DQ 3 - --+ = + 3w 11w 12w 6 1w 3-+ =-+ 3w 11w 3 w...

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