document.write( "Question 729964: what are the two roots for the equation -x^2+8x-7=0 \n" ); document.write( "
Algebra.Com's Answer #446306 by hoomanc(14)\"\" \"About 
You can put this solution on YOUR website!
for all such problems that match with following pattern just follow the procedure and that will easily solve!\r
\n" ); document.write( "\n" ); document.write( "pattern: \"ax%5E2%2Bbx%2Bc\"
\n" ); document.write( "step 1) determine each value from your equation:
\n" ); document.write( "in this case
\n" ); document.write( "\"a=-1\" \"b=8\" \"c=-7\" \r
\n" ); document.write( "\n" ); document.write( "step 2) calculate value D as \"D=+b%5E2-4ac\"
\n" ); document.write( "in this case
\n" ); document.write( " so you would have answer follow to next step to find out.\r
\n" ); document.write( "\n" ); document.write( "step4) the answer of this equation would be as follow:
\n" ); document.write( "(1) \"%28-b%2Bsqrt%28D%29%29%2F%282a%29\" in this case \"%28-8%2Bsqrt%2836%29%29%2F%282%29=-1\"
\n" ); document.write( "(2) \"%28-b-sqrt%28D%29%29%2F%282a%29\" In this case\"%28-8-sqrt%2836%29%29%2F%282%29=-7\" \r
\n" ); document.write( "\n" ); document.write( "it is obvious that if the value of \"D\" get equal to zero two answer would be the same as \"%28-b%2F2a%29\"
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\n" ); document.write( "Good Luck
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