October 2018 1 21 Report

Zapisz w jak najprostrzej postaci ;
a) (x-2) - ( 2 - x)
b) (a + b) + (2a-b) - (a- 2b)
c) (3x - y+ 1 ) - (x + y ) + (y - x)
d) -(2a² - 3ab) - (2b - 3a²) + (-ab-b)
e) (a+b) - (2a - b) - (a-2b)
f) (3x - y +1) - (x+y) + (x-y)
g) -(kx + ny) - (3kx + 2ny) + (5kx - 3ny)
h) (2ab + a + 3) - (3ab - a +3 )
i) (4x ² - 3x) - (x + 0,1 x ²) - (x ² - 0,1 x)


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