document.write( "Question 449347: This question is really killing me (-7-5x^4+5)-(-7x^4-5-9x) \n" ); document.write( "
Algebra.Com's Answer #309112 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"%28-7-5x%5E4%2B5%29-%28-7x%5E4-5-9x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"-7-5x%5E4%2B5-%28-7x%5E4%29-%28-5%29-%28-9x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"-7-5x%5E4%2B5%2B7x%5E4%2B5%2B9x\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28-5x%5E4%2B7x%5E4%29%2B9x%2B%28-7%2B5%2B5%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"2x%5E4%2B9x%2B%28-7%2B5%2B5%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"2x%5E4%2B9x%2B3\"\r
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\n" ); document.write( "\n" ); document.write( "So \"%28-7-5x%5E4%2B5%29-%28-7x%5E4-5-9x%29=2x%5E4%2B9x%2B3\"
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