document.write( "Question 176943: 3x^2-x-1=0 I'm trying to do it with the quadratic formula but I'm a little lost \n" ); document.write( "
Algebra.Com's Answer #131988 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 3x^2-x-1=0 \n" ); document.write( "-------------- \n" ); document.write( "x = [1 +- sqrt(1 - 4*3*-1)]/6\r \n" ); document.write( "\n" ); document.write( "x = [1 +- sqrt(1 + 12)]/6\r \n" ); document.write( "\n" ); document.write( "x = [1 +- sqrt(13)]/6\r \n" ); document.write( "\n" ); document.write( "x = 0.7440169... or x = -0.4106836... \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |