August 2018 3 12 Report
1. Wykonaj działania

a) 4,5x - 0,75 + (-5x - 1)

b) (3x + 5) + (-3x - 5)

c) (4b +6 ) + (-9 - t)

d) 2x - (- 3x - 6x³) + (-x³- 6x + 1)

e) -y-(5 + y - y²) + 2y²

2. Wyłącz wspólny czynnik

a) ½² + 2b³ - 5t

b) 20xy²z + 25x²yz - 30xyz²


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