SOLUTION: 6z^2 + 15z - 8 ≤ 0

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Question 1111919: 6z^2 + 15z - 8 ≤ 0
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Quadratic inequality, using discriminant
Roots .



Answer by ikleyn(52777)   (Show Source): You can put this solution on YOUR website!
. 
Discriminant =   = 417.


Roots    =  .



 < = z <= .

Be aware :   The answer by  @josgarithmetic is   W R O N G.



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