Question

(x+0,2)^2-(x-0,2)^2=?

Answer 1

are you squaring ordered pairs?

Answer 2

i got 0

Answer 3

The book says the answer is 0.8x but I cant seem to make it work on paper

Answer 4

(x+0.2)^2-(x-.02)^2
=(x^2+0.4x+0.04)-(x^2-0.4x+0.04)
=x^2+0.4x+0.04-x^2+0.4x-0.04
=0.8x
There is no such thing as multiplying ordered pairs, I was just making fun of the fact that you put commas instead of points in your question.