Multiplying and Dividing Rational Expressions Answers
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1
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Which expression is equivalent to ?
A
-(16)4B
164C
RootIndex 4 StartRoot one-sixteenth EndRoot
D
Negative (one-sixteenth) Superscript negative 4
2
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What is the product of ?
A
StartFraction 6 Over y Superscript 8 Baseline EndFraction
B
StartFraction 1 Over 6 y Superscript 6 Baseline EndFraction
C
StartFraction 6 Over y Superscript 16 Baseline EndFraction
D
StartFraction 1 Over 6 y Superscript 16 Baseline EndFraction
3
Which expression is equivalent to 9–2?
A
–81B
–18C
StartFraction 1 Over 81 EndFraction
D
StartFraction 1 Over 18 EndFraction
4
Which expression is equivalent to ?
A
y5B
y6C
125y3D
125y55
Anja simplified the expression to . What mistake did Anja make?
A
She divided the exponents instead of subtracting them.B
She divided the coefficients instead of subtracting them.C
She subtracted the coefficients instead of dividing them.D
She subtracted the exponents instead of dividing them.6
Describe how can be simplified.
A
Multiply the bases and add the exponents. Then find the reciprocal and change the sign of the exponent.B
Keep the same base and add the exponents. Then multiply by –1.C
Keep the base and multiply the exponents. Then multiply by –1.D
Add the exponents and keep the same base. Then find the reciprocal and change the sign of the exponent.7
Which expression is equivalent to 5y–3?
A
StartFraction 1 Over 125 y cubed EndFraction
B
StartFraction 1 Over 5 y cubed EndFraction
C
StartFraction 5 Over y cubed EndFraction
D
StartFraction 125 Over y cubed EndFraction
8
What is the quotient of ?
A
StartFraction 1 Over 343 EndFraction
B
One-seventh
C
7D
499
Which expression is equivalent to 6–3?
A
–63B
36C
RootIndex 3 StartRoot 6 EndRoot
D
(One-sixth) cubed
10
Which expression is equivalent to (3a)–2?
A
StartFraction 1 Over 9 a squared EndFraction
B
StartFraction 1 Over 3 a squared EndFraction
C
StartFraction 3 Over a squared EndFraction
D
StartFraction 9 Over a squared EndFraction
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