Odpowiedź:
a) x=-21
b) x²-4x+4
c) -x²+5x-6
d) 2a²b-2ab²
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Zadanie w załącznikuOdpowiedź:
a) x=-21
b) x²-4x+4
c) -x²+5x-6
d) 2a²b-2ab²