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
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document.write( "x^2+3x-1=0 \n" );
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Algebra.Com's Answer #407991 by ankor@dixie-net.com(22740)![]() ![]() 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( " \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 = +/- \n" ); document.write( ": \n" ); document.write( "Subtract 1.5 from both sides, two solutions \n" ); document.write( "x = -1.5 + \n" ); document.write( "and \n" ); document.write( "x = -1.5 - |