# How do you solve #(x + 13)(x - 19)>=0#?

##### 2 Answers

Aug 10, 2015

Answer:

#### Explanation:

From tjhe inequality you can see, that your function has 2 zeros:

graph{x^2-6x-247 [-40, 40, -20, 20]}

so you can write the solution:

Aug 16, 2015

Solve

Ans: (-infinity, -13] and [19, infinity)

#### Explanation:

The 2 x-intercepts (real roots) are x = -13 and x = 19.

Use the algebraic method to solve the inequality

Answer by half closed intervals: (-infinity, -13] and [19, infinity).

The critical points (-13) and (19) are included in the solution set.