document.write( "Question 986739: Let x-2,2√ 3, x-3 be the first 3 terms of a geometric sequence. Find the value of x (the quadratic equation can be solved by factoring). \n" ); document.write( "
Algebra.Com's Answer #607521 by ikleyn(52780)\"\" \"About 
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\n" ); document.write( "Since  \"x-2\",  \"2sqrt%283%29\" and  \"x-3%29\"  are the first  3  terms of a geometric sequence,  you have a proportion\r
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\n" ); document.write( "\n" ); document.write( "\"2sqrt%283%29%2F%28x-2%29\" = \"%28x-3%29%2F%282sqrt%283%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "(saying that the ratio of the second term to the first one is equal to the ratio of the third term to the second one). \r
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\n" ); document.write( "\n" ); document.write( "From the proportion,\r
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\n" ); document.write( "\n" ); document.write( "(x-2)*(x-3) = \"%282sqrt%283%29%29%5E2\" = 4*3 = 12.\r
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\n" ); document.write( "\n" ); document.write( "Hence,\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2+-+2x+-+3x+%2B+6\" = \"12\",\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2+-+5x+-+6\" = \"0\",\r
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\n" ); document.write( "\n" ); document.write( "(x+1)*(x-6) = 0.\r
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\n" ); document.write( "\n" ); document.write( "The roots are  -1  and  6. \r
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\n" ); document.write( "\n" ); document.write( "Answer.  x = -1  or  x = 6.\r
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