Adding and Subtracting Rational Expressions

Question 1

Enter the values for m, n, and p that complete the difference:m =

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Part 1: 3; 3

Question 2

n =

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14

Question 3

p =

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2

Question 4

f = [___]

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8

Question 5

g = [___]

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-6

Question 6

Enter the values for a and b that complete the sum:a =

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Enter the values for a and b that complete the sum:a =: 3; b =: 5

Question 7

a =[___]

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Part 1: -1; 3

Question 8

Explain the steps involved in adding two rational expressions.

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Factor the denominators to find the LCD; rewrite each expression with the LCD; add the numerators over the common denominator; and simplify by canceling common factors when possible.

Question 9

Enter the values for the highlighted variables that show how to subtract the rational expressions correctly:

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a =: 6; b =: 2; c =: 6; d =: 2; e =: 6; f =: 6; g =: 1

Question 10

Describe the error made in subtracting the two rational expressions shown:

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The negative sign must be distributed to every term in the numerator being subtracted. The numerator should be (x+1)−(x−2)=x+1−x+2=3, not −1.

Adding and Subtracting Rational Expressions Answers

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