Question

1). (5a+3b(5a-3b) плиссссссссссс​

Answer 1

25a^2-9b^2

Объяснение:

Разность квадратов(формула)

Answer 2

It seems like you've provided a mathematical expression:

$5a + 3b(5a - 3b)$

If you'd like me to help you simplify or solve this expression, please let me know.