Răspunsuri

2014-06-23T18:59:04+03:00
X²+2 ≥ x²-2x+1+3x

2 ≥ x+1

2-1 ≥ x

1 ≥x  ⇒x∈ (-α;1]
2014-06-23T19:00:48+03:00
Asa se rezolva (sper ca se vede in poza ) :*