How do you solve #12/(x+4)<=4#?
2 Answers
The solution is
Explanation:
You cannot do crossing over.
The inequality is
Let
Build a sign chart
Therefore,
Explanation:
As the expression is undefined for
Before we work on the expression algebraically, let's draw a graph:
graph{-(x+1)/(x+4) [-13.21, 6.79, -5.72, 4.28]}
Based on the graph we can see that the unequality is fulfilled for
Let us clean up the expression to make it easier to work with:
An equivalent expression is
As this is undefined for
1)
Therefore
2)
As the starting point was that