Question

For what positive numbers will the square of a number exceed twice the number?

Answer 1

n^2>2n
n^2-2n>0
n(n-2)>0

So, n must be 3 or greater for the second term to be positive. If it is not positive, the inequality is not true.

Answer 2

0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
There all work