Question

Неравенство во вложении

Answer 1

4^(2x) - 5*4^(x) + 4 ≥ 0
1)  4^x = 1
4^x = 4^0
x = 0
2) 4^x = 4
x = 1
x∈ (- ∞ ; 0] [1; +∞)