AnswersAdv. Algebra II S2 OriginalSimplifying Rational Expressions

Simplifying Rational Expressions Answers

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Simplify each expression.

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4

x4 is in the [___].

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numerator

5

y14 is in the [___].

Answer:

numerator

6

z4 is in the [___].

Answer:

numerator

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Simplify each expression.

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9

Describe how you would simplify the given expression.

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Simplify inside the parentheses by dividing coefficients, subtracting the exponents on like bases, and raising the resulting expression to the –3 power. Then, write bases with positive exponents. Equivalently, raise the numerator and denominator to the –3 power, multiply exponents using the power of a power property, divide coefficients, subtract exponents on like bases, and write with positive exponents. The simplified expression is y^15/(64x^24).

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Simplify. Express the answers using positive exponents.

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Blank 1:4
Blank 2:14
Blank 3:4
12

Type "numerator" or "denominator" to complete each statement.

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Blank 1:numerator
Blank 2:denominator
Blank 3:denominator
13

Examine Tamika’s work below. What is Tamika’s error?

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She added the exponents.
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She simplified the coefficients incorrectly.
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She divided the exponents.
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She moved bases with positive exponents.
14

Simplify. Express the answers using positive exponents.

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15

Simplify each expression.

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16

Simplify each expression.

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x4 is in the [___].

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numerator

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Examine Tamika’s work below. What is Tamika’s error?

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A
She added the exponents.
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She simplified the coefficients incorrectly.
C
She divided the exponents.
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She moved bases with positive exponents.
20

Describe how you would simplify the given expression.

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Answer:

To simplify the expression, first simplify inside the parentheses by dividing the coefficients (20/5 = 4) and subtracting the exponents for each base (5 - (-3) = 8 for x, and 2 - 7 = -5 for y), which results in 4x^8y^-5. Next, raise the resulting expression to the -3 power by multiplying the exponents (8 * -3 = -24 and -5 * -3 = 15). Finally, rewrite the expression using positive exponents. Alternatively, you could first raise the numerator and denominator to the -3 power using the power of a power property, then divide coefficients and subtract exponents.

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