Question

Which expressions represent a difference of squares?

Answer 1

Answer:

$25 {x}^{2} - 36\\ 1-16x^2\\4x^2 - 12x + 9$

Step-by-step explanation:

$25 {x}^{2} - 36 \\ = ( {5x})^{2} - ( {6})^{2}$