document.write( "Question 744530: If one of the roots of the equation 2x^2 - x + C =0 is doubled the other root, find C. \n" ); document.write( "
Algebra.Com's Answer #453439 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! If one of the roots of the equation 2x^2 - x + C = 0 is double the other root, find C.\r \n" ); document.write( "\n" ); document.write( "We know that the roots have to be different signs, factors to \n" ); document.write( "(2x+1)(x-1) FOILs to 2x^2 - 2x + x - 1 = 2x^2 - x - 1; c = -1 \n" ); document.write( "Roots \n" ); document.write( "2x = -1 \n" ); document.write( "x = -.5 \n" ); document.write( "and \n" ); document.write( "x = 1 \n" ); document.write( ": \n" ); document.write( " |