AnswersLJISD-TX-Algebra II-4th 6WKSAdding and Subtracting Rational Expressions

Adding and Subtracting Rational Expressions Answers

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1
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Find the sum:

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
2
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Find the difference:

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
3

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

Question illustration
Answers:
Enter the values for m, n, and p that complete the difference:m =:3
n =:14
p =:2
4

n =

Answer:

14

5

p =

Answer:

2

6

f = [___]

Answer:

8

7

g = [___]

Answer:

-6

8

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

Question illustration
Answers:
Enter the values for a and b that complete the sum:a =:3
b =:5
9

Enter the values for the highlighted variables to complete the steps to find the sum:

Question illustration
Answers:
=:3
=:-6
=:1
=:5
=:1
=:8
=:-6
10

Find the sum:

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
11

Which solution shown below contains an error?

A
Option
Option A
B
Option
Option B
C
Option
Option C
12

Perform the indicated operations:

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
13

Question text not available

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
14

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.

15

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

Question illustration
Answers:
a =:6
b =:2
c =:6
d =:2
e =:6
f =:6
g =:1
16

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

Question illustration
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.

17

b =

Answer:

5

18

b = [___]

Answer:

-6

19

Find the difference:

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
20

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
Option B
C
The simplified numerator of the difference should be 3, not –1.

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