document.write( "Question 693131: When solving the equation 4x^2 + 4x -3 = 0 by completing the square, what should be added to both sides of the equation? \n" ); document.write( "

Algebra.Com's Answer #427275 by Edwin McCravy(20059) $\"\"$ $\"About$

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document.write( "4x² + 4x - 3 = 0\r\n" );
document.write( "         + 4   4   <--- add 4 to both sides.\r\n" );
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document.write( "4x² + 4x + 1 = 4\r\n" );
document.write( "(2x+1)(2x+1) = 4\r\n" );
document.write( "     (2x+1)² = 4\r\n" );
document.write( "        2x+1 = ±√4\r\n" );
document.write( "        2x+1 = ±2\r\n" );
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document.write( "Using the +\r\n" );
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document.write( "        2x+1 = 2\r\n" );
document.write( "          2x = 1\r\n" );
document.write( "           x =  \r\n" );
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document.write( "Using the -\r\n" );
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document.write( "        2x+1 = -2\r\n" );
document.write( "          2x = -3\r\n" );
document.write( "           x = \r\n" );
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document.write( "Edwin

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