September 2018 2 14 Report

1. cene pewnego towaru podniesiono o 15% a nastepnie obniżono o 10%. Oblicz aktualna cene,jezeli początkowa wynosiła 60 zł.

2. a) (√8-√18+√32-2) * √2=

b) (2√3 + 7) (5-9√3) =

c) 4√500+7√180-6√20 =


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