Which will result in a difference of squares?

-7x+4) (-2x+2)

(-7x+4) 4-7x)

(-7x+4-7x-4)

(-7x+4) [7x-4)

Thd

Difference of squares = (a+b) (a-b) = a^2-b^2

(-7x+4) (-2x+2) = 14x^2-14x-8x+8 =

14x^2-22x+8 nope

(-7x+4) (4-7x) = - 28x+49x^2+16-28x

=49x^2-56x+16 nope

(-7x+4-7x-4) that's not even foiling so no

(-7x+4) (7x-4) = - 49x^2+28x+28x-16

=-49x^2+56x-16

Did you type one of them in wrong cuz none of these end up equally difference of squares?