i think this is supposed to be an example of an exponent not "distributing over addition?

(x-2)2

(x– 2)2 = (x– 2)(x– 2) =xx– 2x– 2x+ 4 =x2 – 4x+ 4.

I don't understand where they are getting the -2x from?

is this question even right?

someone please help..thanks