Question

Resolva, no conjunto dos números reais, o sistema:
x + 3/6 - x ≤ 0
( x + 4 ) ² > 10x + x²

Answer 1

6x+3+6x
------------  =  3/6 = 1/2
   6

x²-4x+16 > 10x+x²

x² -x²-4x -10x>16
-14x > 16
14x >-16
x = 16/14 = 8/7