document.write( "Question 393704: Find k such that x+2 is a factor of x^3-kx^2+3x+7k \n" ); document.write( "
Algebra.Com's Answer #279584 by robertb(5830)![]() ![]() You can put this solution on YOUR website! By the remainder theorem, we must have\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "<==> -8 - 4k - 6 + 7k = 0 \n" ); document.write( "<==> -14 + 3k = 0 \n" ); document.write( "==> 3k = 14 \n" ); document.write( "==> k = 14/3.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |