document.write( "Question 71431: how do i add and/or subtract polynomials? \r
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document.write( "ex:: (5x-12)-(2x-7)\r
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document.write( "ex:: (24m-13)-(18m+7)+(6m-4)\r
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document.write( "Please help me solve these, i would very much apriciate it. thank you \n" );
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Algebra.Com's Answer #51096 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Adding/subtracting polynomials: \n" ); document.write( "(5x-12)-(2x-7) First remove the parentheses. \n" ); document.write( "5x-12-2x+7 Notice the change of sign from - to + on the last term. Now group like-terms together. \n" ); document.write( "5x-2x-12+7 Now combine the like-terms. (5x-2x)=3x and (-12+7) = -5 \n" ); document.write( "3x-5\r \n" ); document.write( "\n" ); document.write( "(24m-13)-(18m+7)+(6m+4) Remove the parentheses and remember to change the signs of those terms with a negative sign in front of the parentheses. \n" ); document.write( "24m-13-18m-7+6m+4 Now group like-terms together. \n" ); document.write( "24m-18m+6m-13-7+4 Now combine like terms. (24m-18m+6m) = 6m and (-13-7+4) = -16 \n" ); document.write( "12m-16 This can also be written as: 4(3m-4) \n" ); document.write( " \n" ); document.write( " |