October 2018 2 26 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 i y=-1

d)n²+n-7+3n²-n-9-n+16 dla n=-½


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