# How do you solve #x^ { 3} + 6x ^ { 2} - 36x \leq 216#?

##### 1 Answer

Mar 25, 2017

x

#### Explanation:

check by hit and trial, put x=6 we get L.H.S = 0, so (x-6) is a factor of given equation.

now, given can be written as:

now use wavy curve method to solve the inequality. if you don't know that than google it.

graph{x<=6 [-10, 10, -5, 5]} #