document.write( "Question 252549: If a and b are roots of 7x^2 − 2002x +182 = 0 , find the value of 1/a + 1/b \n" ); document.write( "
Algebra.Com's Answer #184525 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If a and b are roots of 7x^2 − 2002x +182 = 0 , find the value of 1/a + 1/b \n" ); document.write( "------------------ \n" ); document.write( "7x^2 − 2002x +182 = 0 \n" ); document.write( "x^2 - 286x + 26 = 0 \n" ); document.write( "The roots are: \n" ); document.write( "(-b + sqrt(b^2 - 4ac))/2a and \n" ); document.write( "(-b - sqrt(b^2 - 4ac))/2a \n" ); document.write( "---------------------------- \n" ); document.write( "The inverses give: \n" ); document.write( "2a/(-b + sqrt(b^2 - 4ac)) and \n" ); document.write( "2a/(-b - sqrt(b^2 - 4ac)) \n" ); document.write( "The sum is: \n" ); document.write( "2a*2*(-b)/(b^2 - (b^2 - 4ac) \n" ); document.write( "= 4ab/(4ac) \n" ); document.write( "= b/c The general solution \n" ); document.write( "----------------- \n" ); document.write( "For this eqn it's -11 \n" ); document.write( "= -11 \n" ); document.write( " \n" ); document.write( " |