各位大佬 小弟又有野唔識 望各位大佬可以幫到小弟 今次係一條 inequalities
if the quadratic equation x^2 - ( k-4 ) x +k^2 = 0 has two unequal negative roots, find the range of real values of k.
( ans : -4 < K < 4/3 and K =/= 0 )
今次小弟係想問下 :
1. 點解題目話明NEGATIVE ROOT, 最大又可以係 4/3
2. 點解 K =/= 0
P.S. =/= 解唔等於