document.write( "Question 417879: Find the solution to the queation
\n" ); document.write( "2b^2 +9=0
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Algebra.Com's Answer #292523 by MathLover1(20855)\"\" \"About 
You can put this solution on YOUR website!
\"2b%5E2+%2B9=0\"\r
\n" ); document.write( "\n" ); document.write( "\"2b%5E2=-9\"\r
\n" ); document.write( "\n" ); document.write( "\"b%5E2=-9%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"b%5E2=-4.5\"\r
\n" ); document.write( "\n" ); document.write( "\"b\"=+-\"sqrt%28-4.5%29\"\r
\n" ); document.write( "\n" ); document.write( "\"b\"=+-\"sqrt%28-1%2A4.5%29\"\r
\n" ); document.write( "\n" ); document.write( "\"b\"=+-\"i%2Asqrt%284.5%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"b\"=+-\"%282.12%29i\"\r
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\n" ); document.write( "\n" ); document.write( "\"b1=%282.12%29i\"\r
\n" ); document.write( "\n" ); document.write( "\"b1=-%282.12%29i\"\r
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"2b%5E2+%2B9=0\"\r
\n" ); document.write( "\n" ); document.write( "\"2%282.12i%29%5E2+%2B9=0\"\r
\n" ); document.write( "\n" ); document.write( "\"2%284.4944%28-1%29%29+%2B9=0\"\r
\n" ); document.write( "\n" ); document.write( "\"-8.9888+%2B9=0\".....round \"-8.9888=9\"\r
\n" ); document.write( "\n" ); document.write( "\"-9+%2B9=0\"\r
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