# Thread: solving inequalities using interval notations

1. ## solving inequalities using interval notations

5(2r^3-13)<r Please help me solve this ASAP if possible. the little^ sign means the r is cubed it is raised to the third power.

5(2r^3-13)<r Please help me solve this ASAP if possible. the little^ sign means the r is cubed it is raised to the third power.
First solve $5(2r^3- 13)= r$. The values of r that satisfy the equation separate intervals where it is "<" from intervals where it is ">".