document.write( "Question 652418: factor by completing the square. please show how the work is done. I can get the answer but do not know how to work the problem. Thank you.\r
\n" ); document.write( "\n" ); document.write( "x^2+3x-1=0
\n" ); document.write( "

Algebra.Com's Answer #407991 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
x^2 + 3x - 1 = 0
\n" ); document.write( "add 1 to each side
\n" ); document.write( "x^2 + 3x + ___ = 1
\n" ); document.write( "Fill in the blank with a value that will complete the square
\n" ); document.write( "To find this value, divide the coefficient of x by 2 and square it
\n" ); document.write( "\"%283%2F2%29%5E2\" = 2.25, therefore we add 2.25 to both sides
\n" ); document.write( "x^2 + 3x + 2.25 = 1 + 2.25
\n" ); document.write( "x^2 + 3x + 2.25 = 3.25
\n" ); document.write( ":
\n" ); document.write( "This square factors to
\n" ); document.write( "(x + 1.5)^2 = 3.25
\n" ); document.write( ":
\n" ); document.write( "Find the square root of both sides
\n" ); document.write( "x + 1.5 = +/-\"sqrt%283.25%29\"
\n" ); document.write( ":
\n" ); document.write( "Subtract 1.5 from both sides, two solutions
\n" ); document.write( "x = -1.5 + \"sqrt%283.25%29\"
\n" ); document.write( "and
\n" ); document.write( "x = -1.5 - \"sqrt%283.25%29\"
\n" ); document.write( "
\n" );