Simplify Rational Expressions

Flashcard
•
Mathematics
•
10th - 12th 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
What does it mean to simplify a rational expression?
Back
To simplify a rational expression means to reduce it to its simplest form, where the numerator and denominator have no common factors other than 1.
3.
FLASHCARD QUESTION
Front
What is the first step in simplifying a rational expression?
Back
The first step is to factor both the numerator and the denominator completely.
4.
FLASHCARD QUESTION
Front
How do you identify common factors in a rational expression?
Back
Common factors can be identified by factoring both the numerator and denominator and looking for identical factors.
5.
FLASHCARD QUESTION
Front
What is the difference of squares?
Back
The difference of squares is a special product that can be expressed as a^2 - b^2 = (a - b)(a + b).
6.
FLASHCARD QUESTION
Front
How do you simplify (x^2 - 9)/(x + 3)?
Back
Factor the numerator: (x - 3)(x + 3)/(x + 3). Cancel the common factor: x - 3.
7.
FLASHCARD QUESTION
Front
What is the result of simplifying (x^2 - 4)/(x - 2)?
Back
Factor the numerator: (x - 2)(x + 2)/(x - 2). Cancel the common factor: x + 2.
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