Question

Rezolvati in multimea nr naturale urmatoarelor inecuatii:

Answer 1

a)4x-4-2x-2<x-4-2x
2x-6<-x-4
2x+x<-4+6
3x<2
x<2/3 <=>x<0,(6)
x∈{0}

b)2(x²+2x+1)+3x-6≥3(x²-4)-x²+8x
2x²+4x+2+3x-6≥3x²-12-x²+8
2x²+7x-4≥2x²-4
7x≥1
x≥1/7 <=>x≥0,(142857)
x∈{0}