Factor by grouping.
9x3 – 39x2 – 30x

Given:

The expression is

To find:

The factors by grouping method.

Solution:

We have,

Taking out common factors, we get

Splitting the middle term, we get

By grouping method, we get

Therefore, the factor form of given expression is x(x-5)(9x+6).

5

step-by-step explanation:

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.