document.write( "Question 1049827: One number is 4 more than another. The difference between their squares is 104. What are the numbers? \n" ); document.write( "
Algebra.Com's Answer #665405 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "let one number be \"x\" and another \"y\"\r
\n" ); document.write( "\n" ); document.write( "if one number is \"4\" more than another, means \r
\n" ); document.write( "\n" ); document.write( "\"x=y%2B4\" ........eq.1\r
\n" ); document.write( "\n" ); document.write( "if the difference between their squares is \"104\", means \r
\n" ); document.write( "\n" ); document.write( "\"x%5E2-y%5E2=104\" ........eq.2\r
\n" ); document.write( "\n" ); document.write( "substitute \"x\" from eq.1 in eq.2\r
\n" ); document.write( "\n" ); document.write( "\"%28y%2B4%29%5E2-y%5E2=104\" ........eq.2......solve for \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"y%5E2%2B8y%2B16-y%5E2=104\" \r
\n" ); document.write( "\n" ); document.write( "\"cross%28y%5E2%29%2B8y%2B16-cross%28y%5E2%29=104\" \r
\n" ); document.write( "\n" ); document.write( "\"8y=104-16\" \r
\n" ); document.write( "\n" ); document.write( "\"8y=88\" \r
\n" ); document.write( "\n" ); document.write( "\"y=88%2F8\" \r
\n" ); document.write( "\n" ); document.write( "\"y=11\" \r
\n" ); document.write( "\n" ); document.write( "now find \"x\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=y%2B4\" ........eq.1
\n" ); document.write( "\"x=11%2B4\"
\n" ); document.write( "\"x=15\" \r
\n" ); document.write( "\n" ); document.write( "so, one number is \"15\" and another \"11\"
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