September 2018 1 21 Report

rozwiąż nierówność:

1. (x-2)(x+3)>(x-2)(2x+5)

2. (x-3)kwadrat>(x-3)(2x+9)

3.(x-4)kwadrat + (x-4)(x+2)>0

4. (2-x)(x+4) - (2-x)(1-2x) < 0

z góry dziękuję:)


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