document.write( "Question 1175603: 2. Given the binary operation a*b=2a2 - b, find -2*1 (show Solution) \n" ); document.write( "
Algebra.Com's Answer #801242 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Note: Use \"^\" to denote exponentiation. E.g., \"2a^2\" for 2 a squared, instead of \"2a2\". \n" ); document.write( "Given the definition \n" ); document.write( "a*b = 2a^2-b, \n" ); document.write( "if a=-2 and b=1 then \n" ); document.write( "a*b = (-2)*1 = 2(-2)^2-(1) = 2(4)-1 = 8-1 = 7 \n" ); document.write( "This kind of statement looks strange the first couple of times you see it. But it's quite simple. \n" ); document.write( "The definition \"a*b = 2a^2-b\" simply tells you that if you have two numbers a and b, the value of a*b is found by squaring the first number, doubling it, and subtracting the second number. \n" ); document.write( " \n" ); document.write( " |