Explanation Given information: Given expression is 2 − 4 − x x Calculation: To rationalize the numerator the expression is multiplied by the conjugate of the denominator in the numerator and denominator. The expressions a + b and a − b are said to be the conjugates of each other. Here, the conjugate of 2 − 4 − x is 2 + 4 − x Hence, the expression is written as, 2 − 4 − x x = ( 2 − 4 − x x ) ( 2 + 4 − x 2 + 4 − x ) 2 − 4 − x x = ( 2 − 4 − x ) ( 2 − 4 − x ) x ( 2 + 4

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Author: Ratti

Publisher: PEARSON

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Chapter A.4, Problem 43E

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To rationalize the numerator of the given expression.

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Chapter A.4, Problem 42E

Chapter A.4, Problem 44E

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Ch. A.4 - Prob. 1E Ch. A.4 - Prob. 2E Ch. A.4 - Prob. 3E Ch. A.4 - Prob. 4E Ch. A.4 - Prob. 5E Ch. A.4 - Prob. 6E Ch. A.4 - Prob. 7E Ch. A.4 - Prob. 8E Ch. A.4 - Prob. 9E Ch. A.4 - Prob. 10E

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To rationalize the numerator of the given expression.

Solution Summary: The author explains that to rationalize the numerator, the expression is multiplied by the conjugate of the denominator.

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Chapter A.4 Solutions