document.write( "Question 85166: I'm haveing trouble completing this equation...using Q. F.
\n" ); document.write( "x=-b+- sq. b^2-4ac/2a\r
\n" ); document.write( "\n" ); document.write( "2+2x-x^2=0\r
\n" ); document.write( "\n" ); document.write( "The answer is 1+- sq. 3 \n" ); document.write( "
Algebra.Com's Answer #61451 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "\"2%2B2x-x%5E2=0\" Lets first multiply each term by -1 to get the quadratic in a more recognizable form:\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2-2x-2=0\" quadratic in standard form where:
\n" ); document.write( "A=1
\n" ); document.write( "B=-2
\n" ); document.write( "C=-2\r
\n" ); document.write( "\n" ); document.write( "Solve using the quadratic formula
\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+%28-2%29%5E2-4%2A1%2A%28-2%29+%29%29%2F%282%2A1%29+\" and this equals:\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+4%2B8%29%29%2F%282%29+\" which equals:\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+12%29%29%2F%282%29+\" and this can be written as:\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%284%2A3%29%29%2F%282%29+\" simplifying we get:\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+2sqrt%283%29%29%2F%282%29+\" and this reduces to:\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%281+%2B-sqrt%283%29%29\" \r
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\n" ); document.write( "\n" ); document.write( "Hope this helps----ptaylor\r
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