Question

Cum se rezolva urmatoarea inecuatie |x^2-3x+2|<=4x+2.

Answer 1

$|x^{2} -3x+2| \leq 4x+2 \\ x^{2} -3x+2 \leq 4x+2 \\ x( x-3)+2 \leq 4x+2 \\ x( x-3) \leq 4x \\ ( x-3) \leq 4 \\ x \leq 7$