SOLUTION: Solve the inequality. Express the solution as a graph of the interval, and write it in interval notation. -42x^2+15x+3≥0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve the inequality. Express the solution as a graph of the interval, and write it in interval notation. -42x^2+15x+3≥0       Log On


   

Question 840982: Solve the inequality. Express the solution as a graph of the interval, and write it in interval notation.
-42x^2+15x+3≥0
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 -42x^2+15x+3≥0 

x+=+%28-%28-42%29+%2B-+sqrt%28+729%29%29%2F%282%28-42%29%29+

  x = .5   and x = -1/7

  [-1/7,.5]