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Published byGodwin Powers Modified over 8 years ago

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10.4 Addition and Subtraction: Like Denominators Goal: to add and subtract rational expressions with like denominators

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To add and subtract rational expressions with like denominators… Keep the denominator and add or subtract the numerators (just like adding like terms) Remember to simplify your final answer

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What does it mean to be simplified? Your answer has to be completely factored (the numerator and denominator) any common factors must be canceled out

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Add & Subtract Rational Expressions When the denominators are the same, add or subtract the numerators and write the sum or difference over the common denominator.

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3m

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Add & Subtract Rational Expressions

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3x 2 +4x-15 - 454

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Add & Subtract Rational Expressions

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x + 4 Factors of ACSum=B

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Subtracting RE When you subtract a RE remember to distribute the minus sign to the numerator of the 2 nd RE

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Subtract:

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Subtract Rational Expressions

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Subtract fractions: ( ) 2

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Subtract fractions:

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Assignment Page 443 2-32 even Answer must be factored

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