Question

1)x^2+8x+162)-0,64+9n^23)a^3-84)7t^2-7b^2​

Answer 1

Пошаговое объяснение:

1) (x+4)(x+4)=(x+4)²

2) 9n²-0,64=9n²-0,8²=(9n-0,8)(9n+0,8)

3) a³-2³=(a-2)(a²+ab+b²)

4) 7(t²-b²)=7(t-b)(t+b)

Answer 2

Ответ:

1= (x+4)²

3= (a-2) (a²+2a+4)

4= 4,3 вроде

Answer 3

It seems like you've provided an expression with variables and operations, but it's not entirely clear what you're asking for. Are you looking to simplify this expression or solve for specific variables? Please provide more context or clarify your question, and I'd be happy to assist you.