Question

How do you solve and write the following in interval notation: `x(x − 1)(x + 5) >0`?

Answer 1

`x in (-5, 0) cup (1, infty) subset RR`

Explanation:

The zeroes are `-5, 0, 1`

The signals are `-` `0` `+` `0` `-` `0` `+`

`-5 < x < 0 or x > 1`