M miracu New Member Joined Apr 21, 2016 Messages 15 Gender Female HSC 2017 Oct 19, 2016 #1 Please help: For what value of n will one root of the equation (n-2)x^2 + (n+2)x + 2n + 1 = 0 be the reciprocal of the other
Please help: For what value of n will one root of the equation (n-2)x^2 + (n+2)x + 2n + 1 = 0 be the reciprocal of the other
DatAtarLyfe Booty Connoisseur Joined Mar 10, 2015 Messages 1,805 Gender Female HSC 2016 Oct 19, 2016 #2 Lets the roots be alpha and 1/alpha. Using product of roots, the alphas cancel out and your left with: 1 = 2n +1 / n- 2 Rearranging for n, and you get n = -3
Lets the roots be alpha and 1/alpha. Using product of roots, the alphas cancel out and your left with: 1 = 2n +1 / n- 2 Rearranging for n, and you get n = -3