document.write( "Question 453534: how to interpret geometrically the factors of the quadratic expression x2+6x+8 using sqare grids, strips and paper strips \n" ); document.write( "
Algebra.Com's Answer #311620 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The factorization of\r\n" );
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document.write( "x² + 6x + 8\r\n" );
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document.write( "are\r\n" );
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document.write( "(x + 2)(x + 4)\r\n" );
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document.write( "Notice that across the top there is an x, then a 2,\r\n" );
document.write( "so the top of the rectangle represents the factor (x + 2)\r\n" );
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document.write( "Notice that down the left side there is an x and below that\r\n" );
document.write( "is a 4, so the left side of the rectangle represents the\r\n" );
document.write( "factor (x + 4).\r\n" );
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document.write( "Notice that when we multiply out \r\n" );
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document.write( "(x + 2)(x + 4) \r\n" );
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document.write( "using FOIL, we get\r\n" );
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document.write( "x² + 4x + 2x + 8\r\n" );
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document.write( "The square in the upper left corner has area x², the first term\r\n" );
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document.write( "The rectangle in the lower left has area 4x, the second term\r\n" );
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document.write( "The rectangle in the upper right has area 2x, the third term\r\n" );
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document.write( "The rectangle in the lower right has area 8, the fourth term.\r\n" );
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document.write( "Edwin
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