document.write( "Question 253171: If a^2 - 2ab + b^2 = 36 and a^2 - 3ab + b^2 = 22 what is the value of ab ?\r
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document.write( "(A) 6 (B) 8 (C) 12 (D) 14 (E) It cannot be determined from the information give \n" );
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Algebra.Com's Answer #185413 by palanisamy(496)![]() ![]() ![]() You can put this solution on YOUR website! Given, a^2 - 2ab + b^2 = 36 ...(1) \n" ); document.write( " and a^2 - 3ab + b^2 = 22 ...(2) \n" ); document.write( "(1)-(2)=> \n" ); document.write( " (a^2 - 2ab + b^2)-(a^2 - 3ab + b^2) = 36-22 \n" ); document.write( " a^2 - 2ab + b^2-a^2 + 3ab - b^2 = 14 \n" ); document.write( " ab = 14 \n" ); document.write( " \n" ); document.write( " |