Question

Rezolvati in R inecuatia :a)2(2x-3)+3(x-2)≥2;b)2x²-3x-2<0;c)9x²+12x+4>0;d)-2x²+x-3≥0.Va rog din suflet ajutatima.Am evaluare miine.Multumesc

Answer 1

a) 4x-6+3x-6 [tex] \geq [/tex] 2
   7x-12 $\geq$ 2
   7x$\geq$14
   x$\geq$2
   x apartine intervalului [2; -infinit)