4.1 introduction to rational expressions
DESCRIPTION
Rational expressions, equivalent rational expressions, simplifying rational expressions, non-permissible valuesTRANSCRIPT
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Mental Math #1Is true? Discuss with a partner!
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Unit 4: Rational Expressions and Equations
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What are rational expressions?
Any algebraic fraction with a numerator and a denominator that are polynomials
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NonPermissable Values
These are any value for a variable that makes an expression undefined
What do you think will make a relational expression undefined? (THINK OF FRACTIONS)
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E.g. Determine nonpermissible values:
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E.g. Determine nonpermissible values:
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Equivalent Rational Expressions
Q. Are these two fractions equivalent and why?
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Equivalent Rational Expressions
The same rules apply for rational expressions such that you include restrictions
Q. Are these two fractions equivalent and why?
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Simplifying Rational Expressions
How would you simplify the following fraction?
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Simplifying Rational Expressions
E.g. Simplify the following
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Simplifying Rational Expressions
E.g. Simplify the following
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