Question

Sa se rezolve innecuatiile:
Doar D

Answer 1

$(x-2)(x+2)\leq (x-1)^2 < x(x+4)+3\\x^2-2^2\leq x^2-2x+1\\x^2-4-x^2+2x-1\leq 0\\2x-5\leq 0\\x\leq \frac{5}{2}\\\\(x-1)^2 < x(x+4)+3\\x^2-2x+1 < x^2+4x+3\\x^2-2x+1-x^2-4x-3 < 0\\-6x-2 < 0\\x > \frac{-1}{3}$

-1/3<x<=5/2