document.write( "Question 2736: solve
\n" ); document.write( "x^2+2x-6=3
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Algebra.Com's Answer #1238 by xcentaur(357)\"\" \"About 
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\"x%5E2%2B2x-6=3\"
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\n" ); document.write( "\"x%5E2%2B2x-6-3=0\"
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\n" ); document.write( "\"x%5E2%2B2x-9=0\"
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\n" ); document.write( "Compare to ax^2+bx+c=0
\n" ); document.write( "We get:
\n" ); document.write( "a=1
\n" ); document.write( "b=2
\n" ); document.write( "c=-9
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\n" ); document.write( "Using the formula,
\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( "\"x+=+%28-2+%2B-+sqrt%28+2%5E2-4%2A1%2A-9+%29%29%2F%282%2A1%29+\"
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\n" ); document.write( "\"x+=+%28-2+%2B-+sqrt%28+4%2B36+%29%29%2F%282%29+\"
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\n" ); document.write( "Root of 40 = 6.3245 = 6.325
\n" ); document.write( "Now value of x will be,
\n" ); document.write( "x=(-2+6.325)/2 AND (-2-6.325)/2
\n" ); document.write( "x=2.1625 AND -0.1754
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\n" ); document.write( "Solution set={2.163,-0.175}
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\n" ); document.write( "Hope this helps,
\n" ); document.write( "Best of luck.
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