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Conjugate of Denominator
SIMPLIFYING QUOTIENTS OF RADICALS Conjugate: Value or that is multiplied to a radical expression That clears the radical. Rationalizing: Removing a radical expression from the denominator of a fraction. Process: Multiply the fraction by a factor of one its conjugate of denominator. _NUMERATOR_ DENOMINATOR Conjugate of Denominator _NUMERATOR_ DENOMINATOR Example 1 Rationalizing Square Roots [B] [A]
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Practice Rationalizing Square Roots
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Example 2 Rationalizing Square Roots with variables
When using variables, how many more variables are needed to complete the index. Square roots = make pairs with all variables. [B] [A] [C] [d]
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Example 3: Rationalizing Cube Roots
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PRACTICE: Rationalizing Cube Roots
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Example 4 Tougher Rationalizing – Multiple Variables
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PRACTICE - Simplifying Radicals:
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PRACTICE - Simplifying Radicals: continued
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Binomial Conjugate: Binomial that differ only by an addition or subtraction of terms. The product of binomial conjugates is a difference of squares (FOIL) [A] [B]
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What is the Binomial Conjugate and Find the product?
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Example 1: Use Binomials Conjugates to Rationalize
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Practice: Use Binomials Conjugates to Rationalize
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