Adding and Subtracting Rational Expressions Answers
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1
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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
2
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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
3
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
4
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
5
What is the common denominator of in the complex fraction ?
A
a2 b2B
a – bC
a + bD
ab6
What is the common denominator of in the complex fraction ?
A
(x + 2)(x – 2)B
x – 2C
(x + 2)2(x – 2)D
x + 27
Find the sum of the terms. The numerator of the simplified sum is
A
x + 3B
3x + 6C
4x + 6D
4x + 28
What is the difference?
A
StartFraction x minus 1 Over 6 x + 4 EndFraction
B
StartFraction negative 1 Over 4 x + 2 EndFraction
C
StartFraction 1 Over x + 2 EndFraction
D
StartFraction x minus 1 Over x squared + 3 x + 2 EndFraction
9
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
10
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
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