document.write( "Question 60768This question is from textbook alegbra concepts and applications
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document.write( ": Please help me solve!!!\r
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document.write( "to divide 7/(x+2) by (x-2)/14, you can multiply 7/x+2 by what??? \n" );
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Algebra.Com's Answer #41740 by Edwin McCravy(20055)![]() ![]() You can put this solution on YOUR website! Please help me solve!!!\r \n" ); document.write( "\n" ); document.write( "to divide 7/(x+2) by (x-2)/14, you can multiply 7/(x+2) by what??? \n" ); document.write( " \r\n" ); document.write( "It's just the old rule you learned in 4th or 5th grade:\r\n" ); document.write( "\r\n" ); document.write( "\"To divide by a fraction, invert and multiply\"\r\n" ); document.write( " \r\n" ); document.write( " 7 x-2 \r\n" ); document.write( "----- ÷ -----\r\n" ); document.write( " x+2 14\r\n" ); document.write( "\r\n" ); document.write( "Invert the second fraction and multiply\r\n" ); document.write( "\r\n" ); document.write( " 7 14 98 98\r\n" ); document.write( "----- × ----- = ------------ = ------\r\n" ); document.write( " x+2 x-2 (x+2)(x-2) x²-4\r\n" ); document.write( "\r\n" ); document.write( "But you weren't asked to divide it, you were only\r\n" ); document.write( "asked what you would multiply by in order to\r\n" ); document.write( "divide it, and that answer was the fraction to\r\n" ); document.write( "be divided by inverted:\r\n" ); document.write( "\r\n" ); document.write( " 14\r\n" ); document.write( " ----- \r\n" ); document.write( " x-2\r\n" ); document.write( "\r\n" ); document.write( "Edwin \n" ); document.write( " \n" ); document.write( " |