Question

Решите срочно!!!!!!!!!!

Answer 1

Ответ:

...................................................

Answer 2

1)

$(a - 3b)(a + 3b)$

2)

$(4 - 5m)(4 + 5m)$

3)

$(7x - 12y {}^{2} )(7x + 12y {}^{2} )$

4)

$(1 - \frac{1}{5} a {}^{3} b {}^{4})(1 + \frac{1}{5} a {}^{3} b {}^{4} )$