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Introductory Algebra Glossary

Introductory Algebra Glossary. Chapter Nine. square root . The opposite of squaring a number is called taking its square root; that is, a number b is the square root of a if b 2 = a. . radicand . The number or expression under a radical sign. . radical .

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Introductory Algebra Glossary

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  1. Introductory AlgebraGlossary Chapter Nine

  2. square root • The opposite of squaring a number is called taking its square root; • that is, a number b is the square root of a if b2 = a.

  3. radicand • The number or expression under a radical sign.

  4. radical • A radical sign with a radicand.

  5. radical expression • An algebraic expression that contains radicals.

  6. perfect square • A number with a rational square root.

  7. cube root • A number b is the cube root of a if b3 = a.

  8. fourth root • A number b is the fourth root of a if b4 = a.

  9. index (order) • In a radical of the form, the nth root, n is called the index or order.

  10. perfect cube • A number with a rational cube root.

  11. like radicals • Terms that have multiples of the same root of the same number.

  12. rationalizing the denominator • The process of removing radicals from a denominator so that the denominator contains only rational numbers.

  13. conjugate • The conjugate of a + b is a - b.

  14. squaring property • If both sides of a given equation are squared, all solutions of the original equation are among the solutions of the squared equation. Used to solve equations that include square roots.

  15. Return toIntroductory Algebra • Created by • James Q. Jacobs • Superstition Mountain Campus • Central Arizona College

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