Answer:
C 4.5 the two triangles in the diagram are similar.
Step-by-step explanation:
Since, the two triangles in the diagram are similar.
Therefore,

So the expression is:

You can combine like terms, which are terms that contain the same variables raised to the same power. That means you can combine the two

.

The other terms can't be combined.
Your final answer should be

.
Answer: I'm thinking it's reflectional symmetry.
Step-by-step explanation: