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Unformatted text preview: (2 4 8)( 3 2 5) = ⋅ ⋅ ⋅ ⋅ Remember that the product rule for radicals says radicands can be multiplied as long as the indices are the same. 30 64 = Multiply using either the distributive property or FOIL. 8) =) 5 3 2 ( 5 9) =) 3 2 6 2 ( 3 10) = +) 5 2 )( 5 4 ( 11) = +) 2 3 5 )( 2 7 2 ( 12) = + 2 ) 6 3 ( 3 13) =2 ) 2 3 ( x The following binomials are called conjugates. With conjugates only do the F and L of FOIL. The ‘inner’ and ‘outer’ terms will be eliminated. Remember the pattern: 2 2 ( )( ) a b a b a b +=14) = +) 3 4 2 )( 3 4 2 ( 15) =+ ) 3 5 )( 3 5 (...
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This document was uploaded on 01/21/2012.
 Spring '09
 Radicals

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