Aspx college algebra 4 1 5 4 243 4 243 5 243 3

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Unformatted text preview: ions. The root in this case was not an obvious root and not particularly easy to get if you didn’t know it right off the top of your head. [Return to Problems] 4 æ 243 ö 5 (c) ç ÷ è 32 ø In this case we’ll only use the first form. However, before doing that we’ll need to first use property 5 of our exponent properties to get the exponent onto the numerator and denominator. © 2007 Paul Dawkins 12 http://tutorial.math.lamar.edu/terms.aspx College Algebra 4 1 æ ö 5 4 ç 243 ÷ 4 æ 243 ö 5 243 è ø = ( 3) = 81 = ç ÷= 4 4 4 è 32 ø ( 2 ) 16 æ 1ö 5 5 32 ç 32 ÷ è ø 4 5 [Return to Problems] We can also do some of the simplification type problems with rational exponents that we saw in the previous section. Example 3 Simplify each of the following and write the answers with only positive exponents. æ w -2 (a) ç 1 ç è 16v 2 1 ö4 ÷ [Solution] ÷ ø æ 2 -2 ö xy3÷ (b) ç 1 ç - -3 ÷ ç x 2y ÷ è ø - 1 7 [Solution] Solution (a) For this problem we will first move the exponent into the parenthesis then we will eliminate the negative ex...
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This note was uploaded on 06/06/2012 for the course ICT 4 taught by Professor Mrvinh during the Spring '12 term at Hanoi University of Technology.

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