document.write( "Question 81438: can someone please check this for me please?\r
\n" ); document.write( "\n" ); document.write( "7x^2+18x-9
\n" ); document.write( "x=-b+-sqrt $\"b%5E2-4ac\"$ /2a
\n" ); document.write( "x=-18+-sqrt $\"18%5E24%2A7%2A9\"$ /2*7
\n" ); document.write( "x=(-18+24)/2*7
\n" ); document.write( "x=6/14=3/7
\n" ); document.write( "x=-42/14=-3
\n" ); document.write( "x=7 \n" ); document.write( "

Algebra.Com's Answer #58328 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
can someone please check this for me please?\r
\n" ); document.write( "\n" ); document.write( "7x^2+18x-9
\n" ); document.write( "x=-b+-sqrt $\"b%5E2-4ac\"$ /2a
\n" ); document.write( "x = [-18+-sqrt18^2-4*7*-9]/14
\n" ); document.write( "x = [-18+-sqrt(576)]/14
\n" ); document.write( "x = [-18+-24]/14
\n" ); document.write( "x= [-18+24]/14 or x=[-18-24]/14
\n" ); document.write( "x= [3/7] or x= -42/14 = -3
\n" ); document.write( "=============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

\n" );