SOLUTION: {{{2x^2-5x-3>=0}}}

Question 688478:
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!

Where is the graph above the x axis?
...
First
Find factors of 2 and 3 which can be subtracted to yield -5
Factors of 2: 1, 2
Factors of 3: 1, 3
...
Adding -6 and 1 yields -5
...

...
2x+1=0
2x = -1

AND
x-3=0

...
The line crosses at x = and 3.
Either below , between and 3, or above 3,
the graph is above the x axis.
...
Being a positive quadratic, where the parabola forms a "smile,"
it is above the x axis where
AND
...
Between and 3, the parabola is below the x axis
...

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