October 2018 1 29 Report

Wyłączanie wspólnego czynnika przed nawias :( w ogóle tego nie rozumiem , pomożecie ?

a) 4a + 4 | 25a- 5 | 0.6a + 0.6 | 1/3 - 1/3a | 2 2/5a + 2 2/5

b) 12b + 9 | 42-4b | 22b + 6 | 0.4 - 0.2b | 1/6b + 5/6

c) 20b + 6c | 1,4 - 7 | 0.9b + 12 | 1,6 a - 2,4c | 2,5a + 0.5b


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