document.write( "Question 1035115: Let f(x)=x^3+7x^2 and g(x)=10x^2-11.
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Algebra.Com's Answer #649730 by Edwin McCravy(20059)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Division by zero, i.e., zero denominators, cause\r\n" );
document.write( "an expression to be undefined.\r\n" );
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document.write( "\"f%2Fg=%28x%5E3%2B7x%5E2%29%2F%2810x%5E2-11%29\"\r\n" );
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document.write( "That has a denominator 10x²-11, and the expression for f/g\r\n" );
document.write( "will be undefined when the denominator 10x²-11 equals 0.\r\n" );
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document.write( "So solve 10x²-11 = 0 for the two values of x which cause\r\n" );
document.write( "the denominator to be equal to zero, (making f/g undefined).\r\n" );
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document.write( "To do that:\r\n" );
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document.write( "Add 11 to both sides.  Divide both sides by 10 to get only\r\n" );
document.write( "x² on the left.  Then use the square root principle with \r\n" );
document.write( "the ±.  That will give you two values when the denominator\r\n" );
document.write( "equals 0 making f/g undefined.\r\n" );
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document.write( "Edwin
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