Question

A +5 (a-9xa+9) a+7 (a-9) 2 X a-9 a +3 2 7+a 9+a​

Answer 1

It seems like you've provided an expression with various terms and operations, but it's a bit unclear what you want to do with it. Are you looking to simplify the expression or solve for a specific value of 'a'?

To simplify the expression, let's break it down step by step:

1. Start with the given expression:

   A + 5(a - 9x*a + 9) * (a + 7) * (a - 9) * 2 * (a - 9) * (a + 3) * (2 * 7 + a * 9 + a)

2. Expand the terms within the parentheses:

   A + 5(a^2 - 9ax + 45) * (a^2 - 9a + 7a - 63) * 2 * (a^2 - 9a) * (a + 3) * (16 + 10a)

3. Continue simplifying:

   A + 5(a^2 - 9ax + 45) * (a^2 - 2a - 63) * 2 * (a^2 - 9a) * (a + 3) * (16 + 10a)

4. Expand further:

   A + 10(a^4 - 2a^3 - 63a^2 - 9ax^2 + 18ax + 450) * (a^3 + 3a^2 - 9a^2 - 27a) * (16 + 10a)

5. Multiply out the terms:

   A + 10(a^7 - 2a^6 - 63a^5 - 9a^3x^2 + 18a^4x + 450a^3 + 3a^5 - 9a^4 - 27a^3) * (16 + 10a)

6. Distribute the 10 through the first set of parentheses:

   A + 10a^7 - 20a^6 - 630a^5 - 90a^3x^2 + 180a^4x + 4500a^3 + 30a^5 - 90a^4 - 270a^3 * (16 + 10a)

7. Distribute the 16 + 10a through the second set of parentheses:

   A + 10a^7 - 20a^6 - 630a^5 - 90a^3x^2 + 180a^4x + 4500a^3 + 30a^5 - 90a^4 - 270a^3 * 16 - 270a^4 + 30a^3

8. Combine like terms:

   A + 10a^7 - 20a^6 - 630a^5 - 90a^3x^2 + 180a^4x + 4500a^3 + 30a^5 - 90a^4 - 270a^3 * 16 - 270a^4 + 30a^3

9. Finally, simplify further if necessary.

If you have a specific value of 'a' you'd like to evaluate this expression for, please provide that value, and I can calculate the result for you.