October 2018 1 28 Report

zad 1 przedstaw sumę w postaci iloczynu

a) 16 -b⁴

b) 3a-a² b-6b+2ab²

c)10a³ b²+20a²b-5a⁴b³

zad 2.

uprość wyrażenie (b-2)(2b+5)-(3b-2)² oblicz wartość wyrażenia dla b= -1 i 1/7


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