How do you factor #2c^2-32d^2#?
Worth remembering the standard form of
IT CROPS UP ALL OVER THE PLACE
We have a version of it in this question!
So we look for values that we can square
2 is a problem so lets try and 'sort of' move it out of the way
Factor out 2 giving:
Now we are getting somewhere. The 16 can be written as
So using the standard form of