Complete the square to write an equation in general form of 4x2 - 9y2 + 24x + 18y - 9 = 0 in the standard form shown below, and then identify the key features of the graph.

see image below for more clarification

Step-by-step explanation:

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .