Step-by-step explanation:
We use
[tex]a ^{2} - \times ^{2} = (a - \times )(a + \times )[/tex]
Now we have
[tex] \frac{ { \times }^{2} }{9} - 64 = ( \frac{ \times }{3} ) ^{2} - {8}^{2} \\ = ( \frac{ \times }{3} - 8)( \frac{ \times }{3} + 8)[/tex]
Hope that useful for you
