The solution of inequality 5−2x3≤x6−5 is
[8,∞)
[6,∞)
[4,∞)
[2,∞)
Given in equality ⇒ 10–4x≤x–30⇒8≤x
The solution of inequality 4x + 3 < 5x + 7 when x is a real number is