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Simplifying and
Simplify fractions whose numerators are binomials containing a square root by simplifying the radical first and then canceling common factors. ⓐ : Extract the largest perfect square factor from the radicand: . The fraction becomes . Factor out the common factor of from the numerator to get . Cancel the in the numerator and denominator to obtain the simplified expression . ⓑ : Simplify the radical by extracting the perfect square factor: . The fraction becomes . Factor out the common factor of from the numerator to yield . Cancel the to leave the simplified result .
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Ch.8 Roots and Radicals - Intermediate Algebra @ OpenStax
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A junior accountant is simplifying the variance formula for a financial report. After simplifying the radical, the expression is written as . Before the accountant can reduce the fraction further, they must recall the rule for canceling numerical values. Which of the following is the correct rule to apply at this stage?
Simplifying
Simplifying and