document.write( "Question 88145: dｲ + 3d - 7 = 0 \n" ); document.write( "
Algebra.Com's Answer #63976 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "           dｲ + 3d - 7 = 0\r\n" );
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document.write( "Use the quadratic formula, which gives \r\n" );
document.write( "the solution to\r\n" );
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document.write( "          axｲ + bx + c = 0\r\n" );
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document.write( "The quadratic formula is\r\n" );
document.write( "                  ______ \r\n" );
document.write( "            -b ｱ ﾖbｲ-4ac\r\n" );
document.write( "        x = 覧覧覧覧覧覧予r\n" );
document.write( "                2a \r\n" );
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document.write( "Compare \r\n" );
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document.write( "           dｲ + 3d - 7 = 0\r\n" );
document.write( "to\r\n" );
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document.write( "          axｲ + bx + c = 0\r\n" );
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document.write( "we see that:  a = 1; x = d; b = 3; c = -7\r\n" );
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document.write( "                     _____________\r\n" );
document.write( "             -(3) ｱ ﾖ(3)ｲ-4(1)(-7)\r\n" );
document.write( "        d = 覧覧覧覧覧覧覧覧覧覧覧覧\r\n" );
document.write( "                     2(1) \r\n" );
document.write( "                   ____ \r\n" );
document.write( "             -3 ｱ ﾖ9+28\r\n" );
document.write( "        d = 覧覧覧覧覧覧予r\n" );
document.write( "                  2\r\n" );
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document.write( "                   __ \r\n" );
document.write( "             -3 ｱ ﾖ37\r\n" );
document.write( "        d = 覧覧覧覧覧予r\n" );
document.write( "                 2 \r\n" );
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document.write( "                      \r\n" );
document.write( "Edwin

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