document.write( "Question 81653: can someone please help me multiply?\r
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Algebra.Com's Answer #58486 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
\"%28%28%284x-40%29%2F%28x%5E2%2B10x%29%29%2A%28%283x%29%2F%2810-x%29%29%29\"
\n" ); document.write( "\"%28%28%284%29%28x-10%29%2F%28x%29%28x%2B10%29%29%2A%28%283x%29%2F%2810-x%29%29%29\" [factor whrever possible]
\n" ); document.write( " [multiply through by (-1) to cause the expressions to match: (-1)(4)(-1)(x-10)=-4(-x+10)]
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\n" ); document.write( "\"%28%28%28-4%29%28-x%2B10%29%2F%28x%29%28x%2B10%29%29%2A%28%283x%29%2F%2810-x%29%29%29\"
\n" ); document.write( "\"%28%28%28-4%29%2810-x%29%2F%28x%29%28x%2B10%29%29%2A%28%283x%29%2F%2810-x%29%29%29\" [re-arrange the terms: -x+10 = 10-x which does not change the value]
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\n" ); document.write( "\n" ); document.write( "\"%28%28%28-4%29%2F%28x%29%28x%2B10%29%29%2A%28%283x%29%2F%281%29%29%29\" [cancel wherever possible]
\n" ); document.write( "\"%28%28%28-4%29%2F%281%29%28x%2B10%29%29%2A%28%282x%29%2F%281%29%29%29\" [cancel wherever possible]
\n" ); document.write( "\"%28%28%28-8x%29%2F%28x%2B10%29%29%29%29\" [if you cannot reduce or cancel any further, than multiply straight across]
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