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Zad. 47
a²-5a + 6
Δ = 25 - 24 = 1; √Δ = 1
a²-5a + 6 = (a - 2)(a - 3)
3 - a = -1·(-3+a) = -(a-3)
a²-3a+2
Δ = 9-8=1; √Δ = 1
a²-3a+2 = (a-1)(a-2)
Zad. 48
c-a = -1 · (-c + a) = -(a-c)
b-a = -1 · (-b + a) = -(a-b)
Zad. 49
Zad. 50
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Zad. 47
a²-5a + 6
Δ = 25 - 24 = 1; √Δ = 1
a²-5a + 6 = (a - 2)(a - 3)
3 - a = -1·(-3+a) = -(a-3)
a²-3a+2
Δ = 9-8=1; √Δ = 1
a²-3a+2 = (a-1)(a-2)
Zad. 48
c-a = -1 · (-c + a) = -(a-c)
b-a = -1 · (-b + a) = -(a-b)
Zad. 49
Zad. 50