document.write( "Question 214886: what relationship does the number four have to the quadratic equation? \n" ); document.write( "

Algebra.Com's Answer #162329 by Edwin McCravy(20055) $\"\"$ $\"About$

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what relationship does the number four have to the quadratic equation?
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document.write( "A square is a polygon that looks like this.\r\n" );
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document.write( "It has FOUR equal sides and a right angle at each corner.\r\n" );
document.write( "To find the area of a square, we raise the length of a \r\n" );
document.write( "side , to the 2nd power, i.e., \r\n" );
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document.write( "The practice of finding the area of a square became\r\n" );
document.write( "known as \"squaring\".  Thus the practice of raising a number \r\n" );
document.write( "to the second power became to be known as \"squaring\".\r\n" );
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document.write( "A quadratic equation has as its largest power of a variable\r\n" );
document.write( "the 2nd power.\r\n" );
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document.write( "There is a similar story about cubes and cubic equations.\r\n" );
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document.write( "A cube is a solid figure that looks like this:\r\n" );
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document.write( "To find the volume of a cube, we raise the length of a \r\n" );
document.write( "side , (actually it's called an \"edge\") to the \r\n" );
document.write( "3rd power, i.e., \r\n" );
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document.write( "The practice of finding the volume of a cube became\r\n" );
document.write( "known as \"cubing\".  Thus the practice of raising a number \r\n" );
document.write( "to the third power became to be known as \"cubing\".\r\n" );
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document.write( "A cubic equation has as its largest power of a variable\r\n" );
document.write( "the 3rd power.\r\n" );
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document.write( "Edwin

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