Rozwiąż nierównośc
2(x + 1) < -x(x + 1)
Oblicz pierwiastki całkowite wielomianu
2x + 2 < -x^2 - x
x^2 + 3x + 2 < 0
delta = 9 - 8 = 1
x1 = -2
x2 = -1
Rysujemy parabole i piszemy odpowiedz:
x nalezy do (-2;-1)
Uzylem schematu Hornera i mam pierwiastek = 1
W(1) = 0
W(x) = (x - 1)(x^2 - 2x -15)
delta = 4 + 60 = 64
pierwiastek z delty = 8
x1 = -3
x2 = 5
W(x) = (x - 1)(x + 3)(x - 5)
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2(x + 1) < -x(x + 1)
2x + 2 < -x^2 - x
x^2 + 3x + 2 < 0
delta = 9 - 8 = 1
x1 = -2
x2 = -1
Rysujemy parabole i piszemy odpowiedz:
x nalezy do (-2;-1)
Uzylem schematu Hornera i mam pierwiastek = 1
W(1) = 0
W(x) = (x - 1)(x^2 - 2x -15)
delta = 4 + 60 = 64
pierwiastek z delty = 8
x1 = -3
x2 = 5
W(x) = (x - 1)(x + 3)(x - 5)