document.write( "Question 55883: x^2-1/x^2+x*3x/1-x please help simplify \n" ); document.write( "
Algebra.Com's Answer #37886 by Edwin McCravy(20060)![]() ![]() You can put this solution on YOUR website! x^2-1/x^2+x*3x/1-x please help simplify\r\n" ); document.write( "\r\n" ); document.write( " x² - 1 3x\r\n" ); document.write( "-------- · -------\r\n" ); document.write( " x² + x 1 - x\r\n" ); document.write( "\r\n" ); document.write( "All the numerators and denominators\r\n" ); document.write( "are in descending order except 1 - x\r\n" ); document.write( "So arrange the 1 - x in descending order,\r\n" ); document.write( "as -x + 1\r\n" ); document.write( "\r\n" ); document.write( " x² - 1 3x\r\n" ); document.write( "-------- · -------\r\n" ); document.write( " x² + x -x + 1 \r\n" ); document.write( "\r\n" ); document.write( "Factor the upper left numerator as the\r\n" ); document.write( "difference of two squares:\r\n" ); document.write( "\r\n" ); document.write( " (x - 1)(x + 1) 3x\r\n" ); document.write( "---------------- · --------\r\n" ); document.write( " x² + x -x + 1\r\n" ); document.write( "\r\n" ); document.write( "Factor the lower left denominator by\r\n" ); document.write( "factoring out x\r\n" ); document.write( "\r\n" ); document.write( " (x - 1)(x + 1) 3x\r\n" ); document.write( "---------------- · --------\r\n" ); document.write( " x(x + 1) -x + 1 \r\n" ); document.write( "\r\n" ); document.write( "Factor the lower right denominator by\r\n" ); document.write( "factoring out -1, which causes a \r\n" ); document.write( "sign change inside the parentheses:\r\n" ); document.write( "\r\n" ); document.write( " (x - 1)(x + 1) 3x\r\n" ); document.write( "---------------- · ----------\r\n" ); document.write( " x(x + 1) -1(x - 1)\r\n" ); document.write( "\r\n" ); document.write( "Indicate the multiplication of the\r\n" ); document.write( "numerators and denominators so that\r\n" ); document.write( "we have just one fraction. Write the\r\n" ); document.write( "shorter factors first:\r\n" ); document.write( "\r\n" ); document.write( " 3x(x - 1)(x + 1) \r\n" ); document.write( " -------------------\r\n" ); document.write( " -1x(x + 1)(x - 1)\r\n" ); document.write( "\r\n" ); document.write( " Cancel the x's\r\n" ); document.write( " \r\n" ); document.write( " 1\r\n" ); document.write( " 3\n" ); document.write( " |