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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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Presentation Transcript
square root
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.
radicand
radicand
  • The number or expression under a radical sign.
radical
radical
  • A radical sign with a radicand.
radical expression
radical expression
  • An algebraic expression that contains radicals.
perfect square
perfect square
  • A number with a rational square root.
cube root
cube root
  • A number b is the cube root of a if b3 = a.
fourth root
fourth root
  • A number b is the fourth root of a if b4 = a.
index order
index (order)
  • In a radical of the form, the nth root, n is called the index or order.
perfect cube
perfect cube
  • A number with a rational cube root.
like radicals
like radicals
  • Terms that have multiples of the same root of the same number.
rationalizing the denominator
rationalizing the denominator
  • The process of removing radicals from a denominator so that the denominator contains only rational numbers.
conjugate
conjugate
  • The conjugate of a + b is a - b.
squaring property
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.
return to introductory algebra
Return toIntroductory Algebra
  • Created by
  • James Q. Jacobs
  • Superstition Mountain Campus
  • Central Arizona College