(4x)(9\sqrt (x))

Evaluate

Remove the parentheses

Solution

Evaluate

To find the roots of the expression,set the expression equal to 0

Find the domain

Calculate

Multiply the terms

Multiply the terms

Multiply the terms

Elimination the left coefficient

The only way a root could be 0 is when the radicand equals 0

Find the union

Check if the solution is in the defined range

Solution