document.write( "Question 385519: x^2+9x-12=0
\n" ); document.write( "x^2=9x=12
\n" ); document.write( "4x^2+36x=12x4
\n" ); document.write( "4x^2+36x=48
\n" ); document.write( "4x^2+36x+6=48+6\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "and this is where i get completely confused...i don't even know if I've done the problem right thus far. your suggestions please???
\n" ); document.write( "

Algebra.Com's Answer #272750 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
x^2+9x-12=0
\n" ); document.write( " Use the quadratic formula:
\n" ); document.write( "x = [-b +- sqrt(b^2-4ac)]/(2a)
\n" ); document.write( "-----------------------------------
\n" ); document.write( "x = [-9 +- sqrt(81 - 4*1*-12)]/2
\n" ); document.write( "---
\n" ); document.write( "x = [-9 +- sqrt(129)]/2
\n" ); document.write( "----
\n" ); document.write( "x = [-9 +- 11.36]/2
\n" ); document.write( "---
\n" ); document.write( "x = [2.36/2] or x = [-20.36/2]
\n" ); document.write( "---
\n" ); document.write( "x = 1.18 or x = -10.18
\n" ); document.write( "============================
\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" ); document.write( "
\n" );