document.write( "Question 41159: xsquared-7x+12-7 \n" ); document.write( "
Algebra.Com's Answer #26571 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! You will need to use the quadratic formula.\r \n" ); document.write( "\n" ); document.write( "First simplify the expression:\r \n" ); document.write( "\n" ); document.write( "x^2 -7x+5\r \n" ); document.write( "\n" ); document.write( "Plug it into the Q.F.:\r \n" ); document.write( "\n" ); document.write( "[-(-7) +- sq. root (-7)^2 - 4(1)(5)]/2(1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " [7 +- sq. root 49 - 20]/2 = \n" ); document.write( "[7 +- sq. root 29]/2 = \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You will have two solutions \n" ); document.write( "[7 - sq. root 29]/2 \n" ); document.write( "and \n" ); document.write( "[7 + sq. root 29]/2\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------------------------------------------------------------------------- \n" ); document.write( " \n" ); document.write( " |