document.write( "Question 366412: Please help me solve this equation:\r
\n" );
document.write( "\n" );
document.write( "| x 5 2 |
\n" );
document.write( "|-6 4 1 | = x^2 + 22x - 1
\n" );
document.write( "| 3 1 x |\r
\n" );
document.write( "\n" );
document.write( "I've tried:\r
\n" );
document.write( "\n" );
document.write( "(solving the 3x3..)
\n" );
document.write( "4x^2+15-12-24-x+30x
\n" );
document.write( "4x^2+29x-21
\n" );
document.write( "(then equaling that to the right part of the original equation...)
\n" );
document.write( "4x^2+29x-21=x^2+22x-1
\n" );
document.write( "3x^2+7x-20=0\r
\n" );
document.write( "\n" );
document.write( "I don't know know where to go from there to solve for x. \n" );
document.write( "
Algebra.Com's Answer #261117 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Just like any other quadratic. You either factor it or use the quadratic formula. This one factors:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( "My calculator said it, I believe it, that settles it \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |