October 2018 1 43 Report

Rozwiąż równania i nierówności:

a) (1+x)(1-x)=(x-1)^2-2x^2

b) (3x-2)(3x+2)=9(x-1/3)^2

c) (2x+1)^2-(2x-1)2<9(x-1)(x+1)-(3x+1)^2

d) 1-(2x-1)(1+2x)<-2x-(2x-1)^2

e) (2x+5)(5-2x)+(2x-3)^2-2>0

f) (x-1/2)^2-4<x-(2-x)(2+x)


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