Simplify rational expressions

Flashcard
•
Mathematics
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a rational expression?
Back
A rational expression is a fraction where both the numerator and the denominator are polynomials.
2.
FLASHCARD QUESTION
Front
How do you simplify a rational expression?
Back
To simplify a rational expression, factor both the numerator and the denominator and then cancel any common factors.
3.
FLASHCARD QUESTION
Front
What does it mean to cancel in a rational expression?
Back
Cancelling means removing common factors from the numerator and denominator.
4.
FLASHCARD QUESTION
Front
What is the first step in simplifying (3x^2y)/(6xy^2)?
Back
Factor out the common terms: 3x^2y = 3xy * x and 6xy^2 = 3xy * 2y.
5.
FLASHCARD QUESTION
Front
Simplify the expression (x^2 - 9)/(x + 3).
Back
The simplified form is (x - 3) because x^2 - 9 is a difference of squares.
6.
FLASHCARD QUESTION
Front
What is the simplified form of (x + 6)/(x + 4)?
Back
The expression cannot be simplified further.
7.
FLASHCARD QUESTION
Front
What is the result of simplifying (x + 6)/(x - 5)?
Back
The expression remains (x + 6)/(x - 5) as it cannot be simplified.
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