document.write( "Question 739103: the hypotenuse of a right triangle is 24 ft long. the length of one leg is 6 feet more than the other. find the length of the legs. \n" ); document.write( "
Algebra.Com's Answer #453556 by tommyt3rd(5050)\"\" \"About 
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c=24\r
\n" ); document.write( "\n" ); document.write( "Clearly the side we know the least about is the shortest so...\r
\n" ); document.write( "\n" ); document.write( "a=x\r
\n" ); document.write( "\n" ); document.write( "the length of one leg is 6 feet more than the other means...\r
\n" ); document.write( "\n" ); document.write( "b=x+6\r
\n" ); document.write( "\n" ); document.write( "So our equation is:\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B%28x%2B6%29%5E2=24%5E2\"\r
\n" ); document.write( "\n" ); document.write( "so here we go...\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B%28x%5E2%2B12x%2B36%29=576\"\r
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\n" ); document.write( "\n" ); document.write( "\"2x%5E2%2B12x-540=0\"\r
\n" ); document.write( "\n" ); document.write( "divide by 2...\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B6x-270\"\r
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\n" ); document.write( "\n" ); document.write( "but this quadratic cannot be factored - so we use the quadratic formula\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6+%2B-+sqrt%28+6%5E2-4%2A1%2A%28-270%29+%29%29%2F2+\" \r
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\n" ); document.write( "\n" ); document.write( "From which the negative solution can be discarded (why?)\r
\n" ); document.write( "\n" ); document.write( "therefore...\r
\n" ); document.write( "\n" ); document.write( "\"x=3sqrt%2831%29-3\"\r
\n" ); document.write( "\n" ); document.write( "and so...\r
\n" ); document.write( "\n" ); document.write( "{{a=3sqrt(31)-3}}}\r
\n" ); document.write( "\n" ); document.write( "{{b=3sqrt(31)+3}}}\r
\n" ); document.write( "\n" ); document.write( "\"c=24\"
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