If one root of the equation x 2 + P x + 84 = 0 x^2 + Px + 84 = 0 x 2 + P x + 84 = 0 is − 21 -21 − 21 , then how much greater is the value of P P P tha...
Question
If one root of the equation
is
, then how much greater is the value of
than the other root of the equation?