Question

(3a - а квадрат)-9квадрат(а-2)(ф+2)+2а(7+3аквадрат)=

Answer 1

(3а-а²)-9²(а-2)(а+2)+2а(7+3а²)=3а-а²-81а²+243+14а+6а³=6а³-82а²+17а+243

Answer 2

I can help you with math problems. To solve this problem, you need to expand the brackets, collect the like terms, and simplify the expression. Here are the steps:

- Expand the brackets: $(3a-a^2)-9a^2(a-2)(f+2)+2a(7+3a^2) = 3a-a^2-9a^2f-18a^3+18a^2f+36a^3+14a+6a^3$ - Collect the like terms: $3a-a^2-9a^2f-18a^3+18a^2f+36a^3+14a+6a^3 = 24a^3+9a^2f-a^2+17a$ - Simplify the expression: $24a^3+9a^2f-a^2+17a$

The final answer is $24a^3+9a^2f-a^2+17a$. You can check your answer by plugging in some values for $a$ and $f$ and verifying that both sides of the equation are equal. For more information on how to solve algebra problems, you can visit [this website](https://www.educba.com/python-input-function/). I hope this helps.