rozwiaz nierownosc
(x-2)(x-5) ≤ 4
x² - 5x - 2x + 10 - 4 ≤ 0
x² - 7x + 6 ≤ 0
Δ = 49 - 24 = 25
√Δ = 5
x1 = (7 - 5)/2 = 2/2 = 1
x2 = (7 + 5)/2 = 12/2 = 6
++++ +++++ a = 1 > 0
-------o-------o------>
1 ------ 6
odp. x ∈ <1, 6>
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(x-2)(x-5) ≤ 4
x² - 5x - 2x + 10 - 4 ≤ 0
x² - 7x + 6 ≤ 0
Δ = 49 - 24 = 25
√Δ = 5
x1 = (7 - 5)/2 = 2/2 = 1
x2 = (7 + 5)/2 = 12/2 = 6
++++ +++++ a = 1 > 0
-------o-------o------>
1 ------ 6
odp. x ∈ <1, 6>