document.write( "Question 184641: 18x^2 + 9x +1=0\r
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\n" ); document.write( "\n" ); document.write( "answer:x= -1/3 or -1/6\r
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\n" ); document.write( "\n" ); document.write( "need a full break down of how my book got this answer \n" ); document.write( "

Algebra.Com's Answer #138584 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
18x^2 + 9x +1 = 0
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\n" ); document.write( "they used the quadratic formula, namely:
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
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\n" ); document.write( "In your equation a=18, b=9, c=1, so we have:
\n" ); document.write( " $\"x+=+%28-9+%2B-+sqrt%28+9%5E2+-+4+%2A+18+%2A+1+%29%29%2F%282%2A18%29+\"$
\n" ); document.write( ":
\n" ); document.write( " $\"x+=+%28-9+%2B-+sqrt%2881+-+72+%29%29%2F%2836%29+\"$
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\n" ); document.write( " $\"x+=+%28-9+%2B-+sqrt%289%29%29%2F%2836%29+\"$
\n" ); document.write( "Two solutions;
\n" ); document.write( " $\"x+=+%28-9+%2B+3%29%2F%2836%29+\"$
\n" ); document.write( "x = $\"%28-6%29%2F36\"$
\n" ); document.write( "x = $\"-1%2F6\"$
\n" ); document.write( "and
\n" ); document.write( " $\"x+=+%28-9+-+3%29%2F%2836%29+\"$
\n" ); document.write( "x = $\"%28-12%29%2F36\"$
\n" ); document.write( "x = $\"-1%2F3\"$
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\n" ); document.write( "Could you follow this OK? \n" ); document.write( "

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