Question

A(a - 2) - (a + 4)² значение а - 4.​

Answer 1

Ответ:

ниже

Объяснение:

а( квадрат) -2а-а( квадрат) -8а-16

-10а-16

Если а = -4, то

-10 * (-4) -16= 40-16=24

Answer 2

Ответ:

a(a-2)-(a+4)²

4×(4-2)-(4+4)²

4×2-16=-8

Answer 3

To find the value of 'a - 4' in the expression A(a - 2) - (a + 4)², we can simplify the expression step by step:

1. Expand the square: (a + 4)² = (a + 4)(a + 4) = a² + 4a + 4a + 16 = a² + 8a + 16.

2. Distribute the 'A' to the terms inside the first parentheses: A(a - 2) = A * a - A * 2 = Aa - 2A.

Now, substituting these results back into the original expression:

A(a - 2) - (a + 4)² = (Aa - 2A) - (a² + 8a + 16).

Next, we simplify further:

Aa - 2A - a² - 8a - 16.

Rearranging the terms:

-a² + Aa - 8a - 2A - 16.

Finally, we notice that there is no 'a - 4' term in the expression, so we cannot directly find the value of 'a - 4' from the given expression. It is not possible to determine the value of 'a - 4' based on the information provided.