Adding and Subtracting Rational Expressions Answers
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1
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What is the sum?
A
StartFraction 3 x + 4 Over x cubed EndFraction
B
StartFraction 7 Over x EndFraction
C
StartFraction 3 x + 4 Over x squared EndFraction
D
StartFraction 7 Over x + x squared EndFraction
2
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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
3
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
Which expression is equivalent to the following complex fraction?
A
StartFraction 3 y + 1 Over 2 y minus 1 EndFraction
B
StartFraction (2 y minus 1) (3 y + 1) Over y squared EndFraction
C
StartFraction y squared Over (2 y minus 1) (3 y + 1) EndFraction
D
StartFraction 2 y minus 1 Over 3 y + 1 EndFraction
5
What is the numerator of the simplified sum?
A
mc027-2.jpg
B
mc027-3.jpg
C
mc027-4.jpg
D
mc027-5.jpg
6
What is the sum?
A
StartFraction 8 Over x squared + x minus 6 EndFraction
B
StartFraction 5 x minus 12 Over x minus 3 EndFraction
C
StartFraction negative 5 x Over (x + 3) (x minus 3) EndFraction
D
StartFraction 5 x minus 12 Over (x + 3) (x minus 3)
7
Which expression is equivalent to the following complex fraction?
A
StartFraction 2 (x minus 2) Over negative 4 x + 7 EndFraction
B
StartFraction negative 4 x + 7 Over 2 (x minus 2) EndFraction
C
StartFraction negative 4 x + 7 Over 2 (x squared minus 2) EndFraction
D
StartFraction 2 (x squared minus 2) Over (negative 4 x + 7) EndFraction
8
What is the common denominator of in the complex fraction ?
A
3y(y – 3)B
y(y – 3)C
3yD
39
What is the common denominator of in the complex fraction ?
A
a2 b2B
a – bC
a + bD
ab10
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
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