September 2018 1 21 Report

Oblicz wartości liczbowe sum(najpierw zredukuj wyrazy podobne) a) 2a+3-a+6+7a dla a=-2 b)2z+t-3z+4t-1 dla z= 5 i t =0,1 c)13x-2y+7 - 9x+ y - 4+ x-3 dla x=0,2, y = -1 d) nto potegi 2 +n-7+3n to potegi 2 - n - 9 - n+ 16 dla n= - jedna druga PrOsze szybko;p


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