document.write( "Question 235865: I am supposed to solve:\r
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Algebra.Com's Answer #173617 by Edwin McCravy(20063)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E2%2B14x-4=0\"
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\n" ); document.write( "I don't think that's right\r
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document.write( "Checkley said yes, so let's find out for sure:\r\n" );
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document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\" \r\n" );
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document.write( "with \"a=1\", \"b=14\", \"c=-4\"\r\n" );
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document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\" \r\n" );
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document.write( "\"x+=+%28-14+%2B-+sqrt%28196%2B16+%29%29%2F2+\"\r\n" );
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document.write( "\"x+=+%28-14+%2B-+sqrt%28212+%29%29%2F2+\"\r\n" );
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document.write( "\"x+=+%28-14+%2B-+sqrt%284%2A53+%29%29%2F2+\" \r\n" );
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document.write( "\"x+=+%28-14+%2B-+2%2Asqrt%2853+%29%29%2F2+\"\r\n" );
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document.write( "\"x+=+%28-14%29%2F2+%2B-+%282%2Asqrt%2853+%29%29%2F2+\"\r\n" );
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document.write( "\"x+=+-7+%2B-+sqrt%2853+%29+\"\r\n" );
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document.write( "Using the +,\r\n" );
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document.write( "\"x+=+-7+%2B+sqrt%2853+%29+\"\r\n" );
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document.write( "Using a calculator:\r\n" );
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document.write( "\"x+=+-7+%2B+7.280109889+=+0.280109889\"\r\n" );
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document.write( "That rounds off to 0.28, so you're right on that one.\r\n" );
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document.write( "Using the -,\r\n" );
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document.write( "\"x+=+-7+-+sqrt%2853+%29+\"\r\n" );
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document.write( "Using a calculator:\r\n" );
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document.write( "\"x+=+-7+-+7.280109889+=+-14.280109889\"\r\n" );
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document.write( "That rounds off to -14.28.  Uh oh! You missed the\r\n" );
document.write( "sign on that one. Checkley didn't notice.\r\n" );
document.write( "But you were half right!\r\n" );
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document.write( "Edwin
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