document.write( "Question 306010: Please find a counterexample to the statement: The square of a number added to the sum of twice the number and 8 is a prime number. Justify your solution by supporting it with step by step work. \r
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Algebra.Com's Answer #219052 by themathtutor2009(81) ![]() You can put this solution on YOUR website! Counterexample: x=2\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2+2x+8 = 2^2+2(2)+8=4+4+8=16 is not prime \n" ); document.write( " |