document.write( "Question 480775: x^2+16x=0\r
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document.write( "I have to complete the square. I thought I needed to take way the x^2 and put on the other side and then I am left with 16x instead of 16. I could square 16 which is 4. But I don't know what to do with the other x? \n" );
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Algebra.Com's Answer #329191 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! complete the square.\r \n" ); document.write( "\n" ); document.write( "x^2+16x=0 \n" ); document.write( "--- \n" ); document.write( "x^2 + 16x + 8^2 = 8^2 \n" ); document.write( "---- \n" ); document.write( "(x+8)^2 = 64 \n" ); document.write( "---- \n" ); document.write( "(x+8)^2-64 = 0 \n" ); document.write( "Factof: \n" ); document.write( "[(x+8)-8][(x+8)-8] = 0 \n" ); document.write( "---- \n" ); document.write( "x+8-8 = 0 or x+8+8 = 0 \n" ); document.write( "x = 0 or x = -16 \n" ); document.write( "====================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |