October 2018 2 41 Report

4.ROZWIĄŻ NIERÓWNOŚCI:

a)X2 < 2 – x b) 3x2 +1 >2 1/2x

c)x – 7 > 5x2 d) 1/2x2-x > 1

e)4x2 + 49 < 28x f) 3x2 + 7 > 5x


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