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zad1 Zapisz w najprostszej postaci:

Daje naj za wszystko zrobione dobrze błedne odpowieszi bede zglaszane

a)(a+3)(a-1)+(a-7)(a+5)

b)(26-5)(3-2b)-(3b+2)(b-6)

c)-7c-kwadrat(5c-4)+(3c-kwadrat+c)(6-2c)

d)-2x(3x-5y)-(x+2y)(3x-y)


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