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postac kanoniczna y = a(x -p)^ +q
p = -b/2a = -1
q= - delta/4a = - 20/4 = -5
y = (x + 1)^ -5
czyli odpowiedź A
2) x^(x - 7) - 4(x - 7) = (x^- 4)(x - 7) = (x - 2)(x +2) (x - 7)
odpowieź B