AnswersTX-Algebra II B-CRAdding and Subtracting Rational Expressions

Adding and Subtracting Rational Expressions Answers

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Which of the following did you include in your description?

A
You must subtract all terms of the numerator being subtracted out, not just the first term.
B
The negative 2 should have been subtracted out to get a numerator of
C
The simplified numerator of the difference should be 3, not –1.
4

n =

Answer:

14

5

p =

Answer:

2

6

f = [___]

Answer:

8

7

g = [___]

Answer:

-6

8

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Answer not available
9

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

Answer:

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.

10

Explain the steps involved in adding two rational expressions.

Answer:

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.

11

Find the sum:

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A
Option
B
Option
C
Option
D
Option
12

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

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Answers:
Enter the values for a and b that complete the sum:a =:3
b =:5
13

a =[___]

Answer:

3

15

Find the sum:

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A
Option
B
Option
C
Option
16

Which solution shown below contains an error?

A
Option
B
Option
C
Option
17

Question text not available

Answers:
Blank 1:3
Blank 2:5
18

Find the sum:

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A
Option
B
Option
C
Option
D
Option
20

a =

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Answer:

-1

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