October 2018 1 20 Report

5.ROZWIĄŻ NIERÓWNOŚCI:

a) 4x2 > 4x -1

b)9x2 +12x + 4 > 0

c) 9 + 25x2 < 30x

d) 8x - 1 >16x2

e) -x2 +2x -5 >0

f) 2x2 - 3x +4 >0


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