Question

Rezolvati in multimea nr. naturale urmatoarele inecuatii:
a)4(x-1)-2(x+1)<x-2(2+x)  b)2(x+1)la patrat +3(x-2)>3(x+2)(x-2)-(x patrat-8x)
Ajutor,va rog!Urgent!Rezolvareaaaa!

Answer 1

a)4(x-1)-2(x+1) 
b)2(x+1)² +3(x-2)>3(x+2)(x-2)-(x ²-8x)
   2(x²+2x+1) + 3x-6 > 3(x²-4) - (x²-8x)
   2x²+4x+2+3x-6 > 3x²-12-x²+8x
   2x²-3x²+x²+7x-8x>4-12
   -x>-8 /(-1)
   x<8   x ∈ {0,1,2,3,4,5,6,7}