January 2019 0 18 Report
Wskaż zbiór rozwiązań nierówności -2(x-1)(x+3)>0
A. (-∞;3) u (1;∞)
B. (-1;3)
C. (-∞;-1) u (3;∞)
D. (-3;1)

Proszę o wyjaśnienie. ;)
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