4 – x ≥ 0 -x ≥ -4 x ≤ 4 3 = 4x – x^2 x^2 – 4x + 3 = 0 (x – 3)(x – 1) = 0 x1 = 3, x2 = 1

4 – x ≤ 0 -x ≤ -4 x ≥ 4 3 = -4x + x^2 X^2 – 4x – 3 = 0 X3,4 = X3 = 2 + x4 = 2 – x3 podmínku x ≥ 4 splňuje, x4 tuto podmínku nesplňuje

x1 = 3 x2 = 1 x3 = 2 +