bumblebee123
Junior Member
- Joined
- Jan 3, 2018
- Messages
- 200
can anyone help to explain the answer to this question?
question: solve the inequality x^2 + x - 6 ≤ 0
I can begin to solve this: ( x - 2 ) ( x + 3 ) ≤ 0
x ≤ 2 which is correct
x ≤ - 3 which is not correct
the answer is - 3 ≤ x
why does the inequality sign change?
any help would be really appreciated
question: solve the inequality x^2 + x - 6 ≤ 0
I can begin to solve this: ( x - 2 ) ( x + 3 ) ≤ 0
x ≤ 2 which is correct
x ≤ - 3 which is not correct
the answer is - 3 ≤ x
why does the inequality sign change?
any help would be really appreciated