document.write( "Question 205129: Solve The following equation that has 3 roots(solutions):
\n" ); document.write( "x^3 - 3x^2 - 4x + 12 = 0
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Algebra.Com's Answer #154843 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Solve The following equation that has 3 roots(solutions):\r\n" );
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document.write( "\"x%5E3+-+3x%5E2+-+4x+%2B+12+=+0\"\r\n" );
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document.write( "Factor \"x%5E2\" out of the first two terms \r\n" );
document.write( "on the left only:\r\n" );
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document.write( "\"x%5E2%28x+-+3%29+-+4x+%2B+12+=+0\"\r\n" );
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document.write( "Factor \"-4\" out of the last two terms \r\n" );
document.write( "on the left:\r\n" );
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document.write( "\"x%5E2%28x+-+3%29+-+4%28x+-+3%29+=+0\"\r\n" );
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document.write( "Factor \"%28x-3%29\" out of the left side:\r\n" );
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document.write( "\"%28x+-+3%29%28x%5E2+-+4%29+=+0\"\r\n" );
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document.write( "Factor what's in the second parentheses\r\n" );
document.write( "as the difference of squares:\r\n" );
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document.write( "\"%28x+-+3%29%28x-2%29%28x%2B2%29+=+0\"\r\n" );
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document.write( "Set each factor equal to 0\r\n" );
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document.write( "\"x-3=0\" gives solution \"x=3\"\r\n" );
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document.write( "\"x-2=0\" gives solution \"x=2\"\r\n" );
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document.write( "\"x%2B2=0\" gives solution \"x=-2\"\r\n" );
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document.write( "Edwin

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