September 2018 2 21 Report

Oblicz:

1) (2a - 3b +4) + (-4a + b - 2) - (a - b + 1)

2) - (4x - 2y + 7) - (x=4y - 2) + (5x + y - 4)

3) (6a do potęgi 2 - a -2) - (2a do potęgi 2 - a) + (4a-2) + (a do potęgi 2 - 1)

Bardzo proszę o szybkie rozwiązanie :)


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