document.write( "Question 1121353: what two numbers added equal -7 and multiplied equal -8 \n" ); document.write( "
Algebra.Com's Answer #737212 by math_helper(2461)\"\" \"About 
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what two numbers added equal -7 and multiplied equal -8
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\n" ); document.write( "Let x and y be the two numbers\r
\n" ); document.write( "\n" ); document.write( "x+y = -7 —> x = -7-y
\n" ); document.write( "xy = -8 \r
\n" ); document.write( "\n" ); document.write( "Re-write the bottom equation with -7-y substituted for 'x':
\n" ); document.write( "(-7-y)y = -8
\n" ); document.write( "\"-7y+-+y%5E2+=+-8+\"
\n" ); document.write( "\"+y%5E2+%2B+7y+-+8+=+0+\"
\n" ); document.write( "\"+%28y%2B8%29%28y-1%29+=+0+\"\r
\n" ); document.write( "\n" ); document.write( "y=-8 ==> x=1
\n" ); document.write( "y=1 ==> x=-8 \r
\n" ); document.write( "\n" ); document.write( "These are the same answer, as they just swap x and y in a trivial manner.
\n" ); document.write( " So the answer is \"highlight%28+1%29\" and \"highlight%28+-8%29\"
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