SOLUTION: 2x2 + 9x + 4 < 0
I could really use some help with this one
Algebra.Com
Question 335605: 2x2 + 9x + 4 < 0
I could really use some help with this one
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Break up the number line into 3 regions.
Region 1:(,)
Region 2:(,)
Region 3:(,)
Choose a point in each region (not an endpoint) and test the inequality.
If the point satisifes the inequality, that region is part of the solution region.
Region 1:
False, this region is not part of the solution.
.
.
.
Region 2:
True, this region is part of the solution.
.
.
.
Region 3:
False, this region is not part of the solution.
.
.
.
The solution region is (,)
.
.
.
Graphical verification by graphing and looking for the region where the function is less than zero (below the x-axis)
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