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Factor completely

Factor completely. Chapter 7 Section 1. Radical Expressions and Functions. Vocabulary. Radical expression Radical sign b is the radicand a is the root index. Principal square root. a is a nonnegative real number, the nonnegative number ‘b’ such that

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Factor completely

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  1. Factor completely

  2. Chapter 7 Section 1 Radical Expressions and Functions

  3. Vocabulary • Radical expression • Radical sign • b is the radicand • a is the root index

  4. Principal square root • a is a nonnegative real number, the nonnegative number ‘b’ such that b2 = a, denoted by b = , is the principal square root of ‘a’ • - denotes the negative square root of a number.

  5. Example • is 5 since 52 = 25 • is 10 since 102 = 100 • - is – 5 since (-5)2 = 25

  6. Evaluate

  7. Evaluate If f(x) = find 4) f(18) 5) f(2)

  8. Find the domain 6) f(x) =

  9. Evaluate 7) 8) Note the root index.

  10. Evaluate 9) 10)

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