document.write( "Question 314836: We define the operation “o” as follows : a o b = a x b + a - b. What is the value of the expression ( 2 o 5 ) o ( 5 o 2 ) ?\r
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document.write( "(A) 81 (B) 113 (C) 117 (D) 169 (E) None of these \n" );
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Algebra.Com's Answer #225162 by malaydassharma(59) You can put this solution on YOUR website! a o b = a x b + a - b\r \n" ); document.write( "\n" ); document.write( "2 o 5 = 2X5 + 2 - 5 = 7\r \n" ); document.write( "\n" ); document.write( "5 o 2 = 5X2 + 5 - 2 = 13\r \n" ); document.write( "\n" ); document.write( "Hence,\r \n" ); document.write( "\n" ); document.write( "( 2 o 5 ) o ( 5 o 2 )= 7 o 13\r \n" ); document.write( "\n" ); document.write( " = 7X13+7-13=85 \n" ); document.write( " |