Question

754. a) a - a' + a² - 1;​

Answer 1

Ответ:

-84

Пошаговое объяснение:

(а+1)(а-1)(а²+1)-(9+а²)² = (a²-1)(a²+1) - (9+a²)² = a⁴ -1 - 81 - 18a² - a⁴ = -18a² - 82

Если a = 1/3 то

-18a² - 82 = -18(1/3)² - 82 = -2 - 82 = -84

Answer 2

The expression 754. a) a - a' + a² - 1 can be simplified as follows:

a - a' is equivalent to a - 1, because a' represents the multiplicative inverse of a, which is 1/a.

So, the expression becomes:

a - 1 + a² - 1

Now, you can combine like terms:

a + a² - 1 - 1

Simplify further:

a² + a - 2

So, 754. a) a - a' + a² - 1 simplifies to a² + a - 2.