document.write( "Question 687803: Use the Quadratic Formula to solve the equation.\r
\n" ); document.write( "\n" ); document.write( "–x^2 + 7x = 8\r
\n" ); document.write( "\n" ); document.write( "Help please. Thanks!
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Algebra.Com's Answer #425353 by ReadingBoosters(3246)\"\" \"About 
You can put this solution on YOUR website!
Compare to \"ax%5E2+%2B+bx+%2B+c+=+0\"
\n" ); document.write( "...
\n" ); document.write( "\"-x%5E2+%2B+7x+-8+=+0\"
\n" ); document.write( "a = -1, b = 7, c = -8
\n" ); document.write( "...
\n" ); document.write( "quadratic formula
\n" ); document.write( "\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F2a%29\"
\n" ); document.write( "...
\n" ); document.write( "\"x+=+%28-7+%2B-+sqrt%287%5E2-4%28-1%29%28-8%29%29%29%2F%282%2A-1%29\"
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\n" ); document.write( "\"x+=+%28-7+%2B-+sqrt%2849+-+32%29%29%2F-2\"
\n" ); document.write( "...
\n" ); document.write( "\"x+=+%28-7+%2B-+sqrt%2817%29%29%2F-2\"
\n" ); document.write( "...
\n" ); document.write( "\"x+=+%28-7%2Bsqrt%2817%29%29%2F-2+=+-7%2F-2+%2B+sqrt%2817%29%2F-2+=+7%2F2+-+sqrt%2817%29%2F2\"
\n" ); document.write( "AND
\n" ); document.write( "\"x+=+%28-7-sqrt%2817%29%29%2F-2+=+-7%2F-2+-+sqrt%2817%29%2F-2+=+7%2F2+%2B+sqrt%2817%29%2F2\"
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\n" ); document.write( "Have more math questions? Get them all addressed at once.
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\n" ); document.write( "--Reading Boosters
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