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Master Math: Basic Math and Pre-Algebra by Debra Anne Ross

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Chapter 9. Roots and Radicals

  • 9.1 Definitions

  • 9.2 The Square Root

  • 9.3 Estimating Square Roots

  • 9.4 The Cubed Root

  • 9.5 The Fourth and Fifth Roots

  • 9.6 Simplifying Radicals by Factoring

  • 9.7 Multiplying Radicals

  • 9.8 Dividing Radicals

  • 9.9 Radicals Involving Fractions

  • 9.10 Rationalizing the Denominator

  • 9.11 Addition of Radicals

  • 9.12 Subtraction of Radicals

Definitions

• A radical is written using the radical symbol, Definitions. The number that the root is calculated for is inside the radical symbol. The word radical is derived from the Latin word rad, which means root.

• The number inside the radical symbol is called the radicand. In the case of , x represents the radicand.

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