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a) 2+(x-4)(x+4)=(x-1)2 <---(kwadrat)
2x-8+2x+8=2x-1
2x+2x-2x=-1+8-8
2x=-1/:2
x=0,5
b)4(x+1)(x-3)<(2x-3)2 <----(kwadrat)
4x+4+4x-12<4x-9
4x+4x-4x<-9-4+12
4x<-1/:4
x>-0,25
zad.1
|x+3|=1 x=1-3 x=-2
|x+3|>1 x>1-3 x>-2
|x+3|<1 x<1-3 x<-2
|x+3|_< x_<1-3 x<_-2
To pierwsze zad nie wiem czy dobrze ale chyba tak :)