1 | initial version |

The problem is that Sage makes sense of "+infinity > finite number" situations. If you use the somehow equivalent following inequation the Sage answer coincide with Wolfram

```
sage: solve([(4*x+5)/x^3>=4/(x+5)/x], x)
[[x > -5, x <= -1], [x > 0]]
```

Vincent

2 | No.2 Revision |

The problem ~~is ~~seems to be that Sage makes sense of "+infinity > finite number" situations. ~~If you use ~~Even in the ~~somehow equivalent ~~following ~~inequation ~~where both sides of the ~~Sage answer coincide with Wolfram~~inequality are infinite

`sage: `~~solve([(4*x+5)/x^3>=4/(x+5)/x], ~~A = (4*x+5)/(x^2)
sage: B = 4/(x+5)
sage: solve(A >= B, x)
[[x ~~> -5, x <= -1], ~~< -5], [x ~~> 0]]
~~>= -1]]
sage: solve(A/x^2 >= B/x^2, x)
[[x < -5], [x >= -1]]

Vincent

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