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A2.N.5 Rationalizing a denominator involving algebraic radical expression

A2.N.5 Rationalizing a denominator involving algebraic radical expression. A better understanding of rationalizing the denominator from Amna’s conference. Amna’s Confusion. Amna was working on test corrections with Sumaiya and she was confused as to how to complete this problem:.

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A2.N.5 Rationalizing a denominator involving algebraic radical expression

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  1. A2.N.5 Rationalizing a denominator involving algebraic radical expression A better understanding of rationalizing the denominator from Amna’s conference

  2. Amna’s Confusion Amna was working on test corrections with Sumaiya and she was confused as to how to complete this problem: Rationalize the denominator and simplify the fraction: Make rational

  3. What AmnaKnow’s Amna knew she needed to multiply the denominator by the conjugate X

  4. Amna’s Challenge ) ) ) ) Amna was consistently making mistakes when multiplying these two expressions till we discovered a pattern. X X This expression has the same pattern as one from algebra: (x - 2)(x + 2) When we simplify this expression we get: X2 – 2x + 2x – 4 X2 – 4 This is the difference of two squares

  5. A More Simple Way ) ) X 2 2 - - 13 12

  6. Take Away Recognizing patterns will make you able to solve problems more efficiently without making mistakes. ) ) X 2 2 - - 13 12

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