Combining rational expression with unlike denominators

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Mathematics
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in subtracting two rational fractions?
Finding a common denominator
Multiplying the fractions
Simplifying the numerators
Finding a common numerator
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can be factored out from the denominator 3X + 9?
3
9
X + 3
X
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the least common denominator for the fractions in the problem?
X + 3
3X * X + 3
X^2 + 3X
3X
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of combining the fractions into a single expression?
X^2 - 24 over 3X * X + 3
X^2 + 24 over X + 3
X^2 + 24 over 3X * X + 3
X^2 - 24 over X + 3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the restrictions on the variable X in the final expression?
X cannot equal 0 and 3
X cannot equal 0 and -3
X cannot equal 3 and -3
X cannot equal 0 and 1
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