document.write( "Question 238988: Subtract.\r
\n" ); document.write( "\n" ); document.write( "3x^4 + 4x^3 + 7
\n" ); document.write( "- (x^4 - 2x^3 - x^2 - 9x)
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\n" ); document.write( "\n" ); document.write( "Very confused here, thank you \n" ); document.write( "
Algebra.Com's Answer #175565 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Subtract:
\n" ); document.write( "\"3x%5E4%2B4x%5E3%2B7-%28x%5E4-2x%5E3-x%5E2-9x%29\" It would be helpful to group the like-terms together but first, remove the parentheses and be sure to change the sign of each term inside the parentheses:
\n" ); document.write( "\"3x%5E4%2B4x%5E3%2B7-x%5E4%2B2x%5E3%2Bx%5E2%2B9x\" Now group the like-terms.
\n" ); document.write( "\"%283x%5E4-x%5E4%29%2B%284x%5E3%2B2x%5E3%29%2Bx%5E2%2B9x%2B7\" Now add or subtract the terms as indicated:
\n" ); document.write( "\"%282x%5E4%29%2B%286x%5E3%29%2Bx%5E2%2B9x%2B7\"
\n" ); document.write( "The solution is:
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