September 2018 1 22 Report

4. str 20 Matematyka z + 2
DAne są sumy algebraiczne A: 2x - 3y , B: 2y - 3x , C: 2x + 3y. Oblicz
A - B = ......................................................
B - A =
C - A =
B - (A + C) =
A - (B - C) =

1. STR 21
uzupelnij równosc, wpisujac odpowiednie jednomiany.
a) 4a (5b - .....) = ......... - 8a²
b) ⅓ t² (..... + ½ t³) = t² + .......
c) ...... (5a² - 0,2) = ..... - a
d) (...... + 3xy²) : 6 = 2x² y + .....
e) (4y - 6x) : ..... = ..... - ⅕ w⁴

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