Answer:
Step-by-step explanation:
Hello, please consider the following.
A. (x minus y)(y minus x)
[tex](x-y)(y-x)=-(x-y)(x-y)=-(x-y)^2[/tex]
This is not a difference of squares.
B. (6 minus y)(6 minus y)
[tex](6-y)(6-y)=(6-y)^2[/tex]
This is not a difference of squares.
C. (3 + x z)(negative 3 + x z)
This is a difference of squares.
[tex]\boxed{(3+xz)(-3+xz)=(xz+3)(xz-3)=(xz)^2-3^2}[/tex]
D. (y squared minus x y)(y squared + x y)
This is a difference of squares.
[tex]\boxed{(y^2-xy)(y^2+xy)=(y^2)^2-(xy)^2}[/tex]
E. (64 y squared + x squared)(negative x squared + 64 y squared)
This is a difference of squares.
[tex]\boxed{(64y^2+x^2)(-x^2+64y^2)=(64y^2+x^2)(64y^2-x^2)=(64y^2)^2-(x^2)^2}[/tex]
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
