document.write( "Question 527714: 3x^2-1=47 Please explain \n" ); document.write( "
Algebra.Com's Answer #349002 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
I presume you are trying to solve for x:
\n" ); document.write( "3x^2-1=47
\n" ); document.write( "3x^2=48
\n" ); document.write( "x^2=16
\n" ); document.write( "x = +-4
\n" ); document.write( "that is, x is equal to \"plus or minus\" 4\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );