document.write( "Question 102547: Solve the following quadratic equations by completing the square.\r
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document.write( " x² - 6x -3 = 0\r
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Algebra.Com's Answer #74634 by edjones(8007)![]() ![]() You can put this solution on YOUR website! x^2-6x-3=0 \n" ); document.write( "x^2-6x =3 add 3 to both sides. \n" ); document.write( "x^2-6x+9=3+9 take -6/2 and square it and add it to both sides making a perfect square on the left. \n" ); document.write( "(x-3)^2=12 factor the left side. \n" ); document.write( "x-3=+-sqrt(12) take sqrt of both sides. \n" ); document.write( "x-3=+-sqrt(4*3) \n" ); document.write( "x=3+-2sqrt(3) \n" ); document.write( "Ed \n" ); document.write( " \n" ); document.write( " |