September 2018 1 87 Report

Zad 1

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, t=0,1

c)13x-2y+7-9x+y-4+x-3 dla x=0,2,y=-1

d)n{do potęgi 2} +n-7+3n{do potęgi 2}-n-9-n+16 dla n= -1/2 {ułamek}


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