Respuesta:
[tex]25 {x }^{2} - 36y {}^{2} [/tex]
Explicación paso a paso:
[tex](5x - 6y)(5x + 6y)[/tex]
[tex](5x) {}^{2} - (6 {y})^{2} [/tex]
[tex]5 {}^{2} x {}^{2} - {6}^{2} {y}^{2} [/tex]
- [tex] \boxed{ \boxed{ \gray{\mathbf{25 {x}^{2} - 36 {y}^{2} }}}}[/tex]
