Answer:
Step-by-step explanation:
The complete question is
Which products result in a difference of squares? Check all that apply.
- (x – y)(y – x)
- (6 – y)(6 – y)
- (3 + xz)(–3 + xz)
- (y2 – xy)(y2 + xy)
- (25x – 7y)(–7y + 25x)
- (64y2 + x2)(–x2 + 64y2)
Options that result in a difference of square are:
[tex](3 + xz)(-3 + xz)=(xz+3)(xz-3)=xz^{2}-3^{2}[/tex]
[tex](y^{2} - xy)(y^{2} + xy)=(y^{2})^{2} -(xy)^{2}[/tex]
[tex](64y^{2} + x^{2} )(-x^{2} + 64y^{2} )=(64y^{2}+x^{2})(64y^{2}-x^{2})=(64y^{2})^{2}-(x^{2})^{2}[/tex]
