Question

36a^2-(a^2+9)^2........

Answer 1

Ответ:

Смотри решение на фото

Answer 2

Ответ:

$18a^{2} -a^{4} -81$

Объяснение:

$36a^2-(a^2+9)^2 = 36a^2-((a^2)^{2} +18a^2+81) = 36a^2-(a^4 +18a^2+81) = 36a^2-a^4 - 18a^2- 81 = 18a^2 - a^4 - 81$

Answer 3

To simplify the expression $36a^2 - (a^2 + 9)^2$, you can follow these steps:

1. First, expand the square $(a^2 + 9)^2$: $(a^2 + 9)^2 = a^4 + 18a^2 + 81$

2. Now, substitute this expanded expression back into the original expression: $36a^2 - (a^4 + 18a^2 + 81)$

3. Distribute the negative sign to both terms inside the parentheses: $36a^2 - a^4 - 18a^2 - 81$

4. Combine like terms: $(36a^2 - 18a^2) - a^4 - 81$

5. Simplify the terms with $a^2$: $18a^2 - a^4 - 81$

So, $36a^2 - (a^2 + 9)^2$ simplifies to $18a^2 - a^4 - 81$.