How to factorize 5x^2-20y^2

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis. how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Me with this one question, and i'll upvote the brainliest answer