document.write( "Question 478640: I am working on an equation that I am to answer in standard form. Ok I understand that. When I went to check my answer on an online problem solver the answer differs from what I got and I do not see why.\r
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document.write( "(6a^3+2a^2-7)+(2a^3-a+7)\r
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document.write( "here is what i did:\r
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document.write( "6a^3 + 2a^3 = 8a^3\r
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document.write( "2a^2 + (-a) = a\r
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document.write( "(-7) + 7 = 0\r
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document.write( "so my answer is 8a^3 +a\r
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document.write( "from problem solvers the answer is : 8a^3 +2a^2-a\r
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document.write( "which is correct? \n" );
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Algebra.Com's Answer #327953 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! (6a^3 + 2a^2 - 7)+(2a^3 - a + 7) \n" ); document.write( "Combine like terms \n" ); document.write( "6a^3 + 2a^3 + 2a^2 - a + 7 + 7 \n" ); document.write( "8a^3 + 2a^2 - a \n" ); document.write( " |