Difference of squares method is a method that is used to evaluate the difference between two perfect squares.
For example, given an algebraic expression in the form:
[tex]x^2-y^2[/tex]
can be factored as follows:
[tex](x-y)(x+y)[/tex]
From the given expressions, the only expression containing two perfect squares with the minus sign in the middle is the expression in option A.
i.e. [tex]25x^2-64y^2[/tex]
which can be factored as follows:
[tex](5x-8y)(5x+8y)[/tex].
