Jawapan

  • Pengguna Brainly
2016-02-21T23:12:32+08:00
x(x-2)-k(2x-1)+k^2=0
x^2 - 2x - 2kx + k + k^2 = 0
x^2 - (2 + 2k)x + k^2 + k = 0
a = 1 , b = - 2x - 2k , c = k^2 + k
b^2 - 4ac > 0
(-2x-2k)^2 - 4(1)(k^2+k) > 0
4x^2 + 4k^2 - 4k^2 - 4k > 0
4k < 4x^2
k < x^2
2 5 2