document.write( "Question 150628: z^2-64/z / z-8/z+5 \n" ); document.write( "
Algebra.Com's Answer #110561 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\"%28%28z%5E2-64%29%2F%28z%29%29%2F%28%28z-8%29%2F%28z%2B5%29%29\" Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( "\"%28%28z%5E2-64%29%2F%28z%29%29%28%28z%2B5%29%2F%28z-8%29%29\" Multiply the first fraction \"%28z%5E2-64%29%2F%28z%29\" by the reciprocal of the second fraction \"%28z-8%29%2F%28z%2B5%29\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28%28%28z-8%29%28z%2B8%29%29%2F%28z%29%29%28%28z%2B5%29%2F%28z-8%29%29\" Factor \"z%5E2-64\" to get \"%28z-8%29%2A%28z%2B8%29\".\r
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\n" ); document.write( "\n" ); document.write( "\"%28%28z-8%29%28z%2B8%29%28z%2B5%29%29%2F%28z%28z-8%29%29\" Combine the fractions. \r
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\n" ); document.write( "\n" ); document.write( "\"%28highlight%28%28z-8%29%29%28z%2B8%29%28z%2B5%29%29%2F%28z%2Ahighlight%28%28z-8%29%29%29\" Highlight the common terms. \r
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\n" ); document.write( "\n" ); document.write( "\"%28cross%28%28z-8%29%29%28z%2B8%29%28z%2B5%29%29%2F%28z%2Across%28%28z-8%29%29%29\" Cancel out the common terms. \r
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\n" ); document.write( "\n" ); document.write( "\"%28%28z%2B8%29%28z%2B5%29%29%2F%28z%29\" Simplify. \r
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\n" ); document.write( "\n" ); document.write( "So \"%28%28z%5E2-64%29%2F%28z%29%29%2F%28%28z-8%29%2F%28z%2B5%29%29\" simplifies to \"%28%28z%2B8%29%28z%2B5%29%29%2F%28z%29\".\r
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\n" ); document.write( "\n" ); document.write( "In other words, where \"z%3C%3E0\", \"z%3C%3E-5\", or \"z%3C%3E8\"
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