# How do you solve and write the following in interval notation: #(x + 3)(x – 1)(x – 5) < 0#?

##### 1 Answer

Jun 21, 2016

#### Answer:

Either

#### Explanation:

If

(i) All three are negative i.e.

(ii) While

(iii) While

(iv) While

(v) It is also not possible to have all positive.

Hence the solution is either

This is also apparent from the following graph.

graph{(x+3)(x-1)(x-5) [-10, 10, -40, 40]}