Operating with Rational Expressions
Algebra · Flashcards · Recall
ALGEBRA · FLASHCARDS
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QUESTION
What is a rational expression in terms of polynomials
p
(
x
)
p(x)
p
(
x
)
and
q
(
x
)
q(x)
q
(
x
)
?
QUESTION
What does it mean for rational expressions to be closed under multiplication?
QUESTION
What restriction must be stated for a rational expression
p
(
x
)
q
(
x
)
\frac{p(x)}{q(x)}
q
(
x
)
p
(
x
)
?
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ANSWER
q
(
x
)
≠
0
q(x)\ne 0
q
(
x
)
=
0
(exclude values that make the denominator
0
0
0
). The denominator cannot equal zero to avoid undefined expressions.
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