Division of Radicals

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Cards (37)

  • If there are no common factors between the two terms, then it cannot be simplified further.
  • To simplify an expression, we need to find the largest perfect square factor that can be factored out from both terms.
  • To divide by a radical expression, we need to find an equivalent fraction with the denominator as the radicand.
  • We can use the same method if the exponent on the radicand is not equal to one.
  • The numerator is divided by the radicand.
  • The product rule states that if x is a real number, then (x^a)(x^b) = x^(a+b).
  • The quotient rule states that if x is a nonzero real number, then (x^a)/(x^b) = x^(a-b), where b != 0.
  • The power rule states that if n is any integer and p is any rational exponent, then (x^n)^p = x^(np).
  • When dividing by a rational number raised to a power, we raise the numerator and denominator to the same power.
  • The product rule states that when multiplying radical expressions, we keep the same index but add the exponents inside the radical sign.
  • Simplifying expressions involving division by a radical requires finding an equivalent fraction with the denominator as the radicand.
  • When dividing by a rational number raised to a power, we raise the reciprocal of the rational number to the same power.
  • The quotient rule states that when dividing radical expressions, we subtract the exponents inside the radical signs.
  • In some cases, we may have to multiply or divide by a binomial inside the root sign.
  • If n is any positive integer, then (x^n)^m = x^(nm)
  • The power rule states that if n is any integer and p is any rational number, then (x^n)^p = x^(np).
  • The negative exponent rule states that if x is a nonzero real number, then x^-m = 1/x^m.
  • If m and n are integers such that m > n, then there exist unique integers q and r such that m = nq + r, where 0 <= r < |n|.
  • If m is any positive integer, then x^m/y^m = (x/y)^m
  • If the base is negative, we must consider whether the exponent is even or odd.
  • If p and q are integers such that q > 0, then x^p/x^q = x^(p-q)
  • If the exponent is odd, the result will have the opposite sign as the base.
  • If the exponent is even, the result will be positive regardless of the sign of the base.
  • To divide two radical expressions with different indices, we first find LCD and simplify the expression.
  • We can use the definition of an irrational root to write one base as a multiple of another.
  • If the bases are not equal, we cannot perform division directly.
  • If the expression has more than one term, factor out the common factor first.
  • Divide both the numerator and denominator by the highest perfect square factor.
  • If the expression under the square root symbol has no perfect squares, it cannot be expressed using only whole numbers.
  • A decimal can be written as a fraction or a mixed number.