document.write( "Question 702917: \r
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document.write( "3) The sum of twice an integer and three times its square is 261. Find the integer.\r
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document.write( "The answer is 9 & 4 (I think) BUT. what is the work to get it? please help. \n" );
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Algebra.Com's Answer #433251 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! 2X+3X^2=261 \n" ); document.write( "3X^2+2X-261=0 \n" ); document.write( "(3X+29)(X-9)=0 \n" ); document.write( "X-9=0 \n" ); document.write( "X=9 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "2*9+3*9^2=261 \n" ); document.write( "18+3*81=216 \n" ); document.write( "18+243=261 \n" ); document.write( "261=261 \n" ); document.write( " |