Adding and Subtracting Rational Expressions Answers
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1
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Which expression is equivalent to the following complex fraction?
A
StartFraction x minus 1 Over 2 x EndFraction
B
Negative one-half
C
StartFraction 2 x minus 2 Over x EndFraction
D
StartFraction 2 x Over x minus 1 EndFraction
2
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What is the common denominator of in the complex fraction ?
A
3y(y – 3)B
y(y – 3)C
3yD
33
What is the sum?
A
StartFraction 6 Over x squared EndFraction
B
StartFraction 6 Over x Superscript 4 EndFraction
C
StartFraction 6 Over 2 x squared EndFraction
D
StartFraction 8 Over x squared EndFraction
4
What is the sum?
A
StartFraction 5 Over y minus 5 EndFraction
B
StartFraction 5 (y + 2) Over (y minus 2) (y + 5) EndFraction
C
StartFraction 5 Over y + 5 EndFraction
D
StartFraction 5 (y minus 2) Over (y minus 5) (y + 2) EndFraction
5
Which expression is equivalent to the following complex fraction?
A
StartFraction 3 y + 5 x Over 2 (y minus 2 x) EndFraction
B
StartFraction 2 (y minus 2 x) Over 3 y minus 5 x EndFraction
C
StartFraction 2 (y minus 2 x) (3 y minus 5 x) Over x squared y squared EndFraction
D
StartFraction x squared y squared Over 2 (y minus 2 x) (3 y minus 5 x) EndFraction
6
Find the sum of the terms. The numerator of the simplified sum is
A
x + 3B
3x + 6C
4x + 6D
4x + 27
What is the difference?
A
StartFraction x squared + 3 x + 12 Over (x minus 3) (x minus 5) (x + 7) EndFraction
B
StartFraction x (x + 3 minus 12) Over (x + 3) (x minus 5) (x + 7) EndFraction
C
StartFraction x squared + 3 x + 12 Over (x + 3) (x minus 5) (x + 7) EndFraction
D
StartFraction x squared + 3 x minus 12 Over (x + 3) (x minus 5) (x + 7) EndFraction
8
What is the numerator of the simplified sum?
A
mc027-2.jpg
B
mc027-3.jpg
C
mc027-4.jpg
D
mc027-5.jpg
9
What is the sum?
A
Five-thirds
B
StartFraction x + 5 Over x + 3 EndFraction
C
StartFraction x + 5 Over 3 x + 27 EndFraction
D
StartFraction 6 x Over x + 3 EndFraction
10
What is the difference?
A
StartFraction (x + 5) (x + 2) Over x cubed minus 9 x EndFraction
B
StartFraction (x + 5) (x + 4) Over x cubed minus 9 x EndFraction
C
StartFraction negative 2 x + 11 Over x cubed minus 12 x minus 9 EndFraction
D
StartFraction 3 (x + 2) Over x squared minus 3 x EndFraction
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