SOLUTION: How would one go about solving the following inequality in interval notation?
2x^2+x-8>0
Algebra.Com
Question 796578: How would one go about solving the following inequality in interval notation?
2x^2+x-8>0
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
Since this expression is quadratic and it's leading coefficient is positive, it must open upwards. Therefore if it has real roots, then the quadratic expression will be positive for x-values greater than those roots. In fact it has the roots:
which is about...
(-oo,-2.26) U (1.76,oo)
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