September 2018 2 14 Report

1.doprowadz wyrazenia do najprostszej postaci i oblicz ich warosci dla podanych zmiennych.

a) -(x²-3x-4)+(-2+x+3x²) dlax=-3

b) (x sześcian - 4x + 2) - (x kwadrat - 3 x - 1) - (x sześcian - 2x kwadrat + x) dla x = -2

c) (2a-3b)-(4a+2b)-(-7a+4b)dla a=-3½i b=1⅓

d) (7a-4b+3)-(5a-3b+1)dla a=4,5i b=-3,3


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