Cashill--Combining Radical Terms

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Information about Cashill--Combining Radical Terms

Published on July 27, 2008

Author: cashill


Slide 1: Combining Radical Terms What is a radical term? : It is a term which contains a radical. What is a radical term? But what is a radical? : But what is a radical? A radical is another name for a square root. Slide 4: Okay—so a radical term . . . . . . is an term that contains a radical, or square root. Look! There goes one now! Slide 5: Consider these two expressions: Slide 6: What makes them different? What do they have in common? Slide 7: You may have noticed that the two expressions are really the same, if . . . Slide 8: If what? Under what condition would the two expressions be identical? Slide 9: The two expressions are identical when Slide 10: That means since you already know how to simplify the first expression . . . Slide 11: . . . then you also know how to simplify the radical expression . Slide 12: The rules that apply to combining like terms Slide 13: also apply to combining radical terms. Slide 14: also apply to combining radical terms. Slide 15: You can only combine radical terms when the radicands are identical. When what are identical? What is a radicand? Slide 16: The radicand is the number underneath the square root sign. Slide 17: When two (or more) terms have exactly the same radicand, Slide 18: we call them like radical terms, and we can combine them . Slide 19: But when the radicands are not identical . . . Slide 20: . . . the terms cannot be combined. Slide 21: Practice combining radical terms: Slide 22: Practice combining radical terms:

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