document.write( "Question 760787: need help fatoring this polynomial completely. 8x^3 + 4x^2 - 2x-1 and use the square root property to solve the equation. (1-x)^2 = 4. \n" ); document.write( "
Algebra.Com's Answer #463280 by AnlytcPhil(1807)\"\" \"About 
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document.write( "Here is your second problem:\r\n" );
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document.write( "(1-x)² = 4\r\n" );
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document.write( "Use the principle of square roots which says this: \r\n" );
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document.write( "The equation \r\n" );
document.write( "             \" A² = B \" \r\n" );
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document.write( "is equivalent to the double equation (actually two equation)\r\n" );
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document.write( "              \" A = ±√B \"\r\n" );
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document.write( "              where ± means use + one time and use - a second time\r\n" );
document.write( "              to make two equations:   \r\n" );
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document.write( "1-x = ±√4 \r\n" );
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document.write( "1-x = ±2\r\n" );
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document.write( "Using the +              Using the -\r\n" );
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document.write( "1-x = 2                  1-x = -2\r\n" );
document.write( " -x = 1                   -x = -3\r\n" );
document.write( "  x = -1                   x = 3\r\n" );
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document.write( "There are two solutions:  -1 and 3     \r\n" );
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document.write( "Edwin
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