Question

Which of the following inequalities is true for ALL real values of x?

x3 ≥ x2

3x2 ≥ 2x3

(2x)2 ≥ 3x2

3(x − 2)2 ≥ 3x2 − 2

Answer 1

(2x)2 > 3x2 is true the first two you can not have two x’s on the same side because where would you put them both when solving them the last one I’m not sure about