document.write( "Question 743616: I need some help with this question\r
\n" ); document.write( "\n" ); document.write( "-4 1/5x2 + 1 2/5x - 2 4/5 = 0\r
\n" ); document.write( "\n" ); document.write( "Here are my options. I can't seem to get it right.\r
\n" ); document.write( "\n" ); document.write( "A) x = {1 +- i[SQRT(23)]}/6
\n" ); document.write( "B) x = {-1 +- i[SQRT(10)]} / 6
\n" ); document.write( "C) x = {1 +- [SQRT(23)]} /-6
\n" ); document.write( "D) x = 1 +- 5/2 x^2
\n" ); document.write( "E) x = -1 +- 2/5 x^2
\n" ); document.write( "F) x = 2 +- 20 x^2 \n" ); document.write( "

Algebra.Com's Answer #452989 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "x² + x -  = 0\r\n" );
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document.write( "Change the mixed fractions to improper fractions:\r\n" );
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document.write( "x² + x -  = 0\r\n" );
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document.write( "Clear of fractions by multiplying every term through by 5\r\n" );
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document.write( "-21x² + 7x - 14 = 0\r\n" );
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document.write( "Divide through by -7, (negative so the leading term will be \r\n" );
document.write( "positive):\r\n" );
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document.write( "3x² - x + 2 = 0\r\n" );
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document.write( "That doesn't factor so we use the quadratic formula:\r\n" );
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document.write( "x = \r\n" );
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document.write( "with a = 3, b = -1, c = 2\r\n" );
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document.write( "x = \r\n" );
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document.write( "x = \r\n" );
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document.write( "x = \r\n" );
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document.write( "Edwin

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