Definition of Rational Expression - Algebra II
Card 0 of 4
Which of the following fractions is NOT equivalent to 
?
Which of the following fractions is NOT equivalent to
We know that 
is equivalent to 
or 
.
By this property, there is no way to get 
from 
.
Therefore the correct answer is 
.
We know that
By this property, there is no way to get
Therefore the correct answer is
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Simplify:
Simplify:
This problem is a lot simpler if we factor all the expressions involved before proceeding:
Next let's remember how we divide one fraction by another—by multiplying by the reciprocal:
In this form, we can see that a lot of terms are going to start canceling with each other. All that we're left with is just 
.
This problem is a lot simpler if we factor all the expressions involved before proceeding:
Next let's remember how we divide one fraction by another—by multiplying by the reciprocal:
In this form, we can see that a lot of terms are going to start canceling with each other. All that we're left with is just
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Determine the domain of
Determine the domain of
Because the denominator cannot be zero, the domain is all other numbers except for 1, or
Because the denominator cannot be zero, the domain is all other numbers except for 1, or
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Which of the following is the best definition of a rational expression?
Which of the following is the best definition of a rational expression?
The rational expression is a ratio of two polynomials.
The denominator cannot be zero.
An example of a rational expression is:
The answer is:
The rational expression is a ratio of two polynomials.
The denominator cannot be zero.
An example of a rational expression is:
The answer is:
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