Answer:
trueeee :) that is my answer
Let's look at the corresponding ratios:

And we see that the three aren't equal.
Hence, $\Delta ABC$ and $\Delta EDC$ are not similar.
The answer would be 3x i believe
hope this helps! if it doesn't, let me know in the comments! have a great day!
-2*4=-8
-8 is the correct answer