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Published byPhilomena Doyle Modified over 9 years ago
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Objectives: Students will be able to… Use properties of rational exponents to evaluate and simplify expressions Use properties of rational exponents to evaluate and simplify expressions
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Examples: THE PROPERTIES OF EXPONENTS WE LEARNED IN SECTION 6.1 ARE THE SAME FOR RATIONAL EXPONENTS!!!
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Simplify:
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1. 2. Using Properties of Radicals to Simplify
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1. 2. For a radical to be in simplest form, you must remove any perfect n th powers (other than 1) and rationalize any denominators Multiply top and bottom by a quantity that will make the denominator a perfect 4 th power.
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1. 2. Write in simplest form.
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Can only add or subtract radical expressions if they are like radicals (just like combining like terms!!) Examples: 1.) 2.) Like Radicals : same index, same radicand
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1. 2. You try…Perform indicated operation
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Rewrite radicand so exponents match index, if possible Take out any expressions that match the index Can apply any rule of exponents Simplifying Radicals with Variables (assume all variables positive)
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Examples: Simplify
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Write the expression in simplest form. Make denominator perfect 5 th root…multiply by h 3 on top and bottom
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You try!! Simplify
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Challenge…Simplify
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Perform indicated operation. Assume all variables positive. To add or subtract radical expressions involving variables, you also need like radicals (may need to simplify first!!) NOT LIKE RADICALS!!
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You try…perform indicated operation.
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