Question

(8c-4)(-c-9)-(4c+8)(-2c-7)упростить выражение​

Answer 1

Ответ:

Во  вложении смотри я там написал

Объяснение:

Answer 2

To simplify the given expression, you need to apply the distributive property and combine like terms. Let's start by expanding the two sets of parentheses and then combining the like terms.

Given expression: (8c - 4)(-c - 9) - (4c + 8)(-2c - 7)

Step 1: Expand the first set of parentheses: (8c - 4)(-c - 9) = -c * 8c - c * (-4) - 9 * 8c - 9 * (-4) = -8c^2 + 4c - 72c + 36

Step 2: Expand the second set of parentheses: (4c + 8)(-2c - 7) = -2c * 4c - 2c * 8 - 7 * 4c - 7 * 8 = -8c^2 - 16c - 28c - 56

Step 3: Combine the terms: Now, the simplified expression will be the result of the first expansion minus the result of the second expansion:

(-8c^2 + 4c - 72c + 36) - (-8c^2 - 16c - 28c - 56)

Step 4: Combine like terms: In this step, we'll perform subtraction and combine like terms:

-8c^2 + 4c - 72c + 36 + 8c^2 + 16c + 28c + 56

Now, combine the constants and the c terms separately:

(4c - 72c + 16c + 28c) + (36 + 56)

Combine like terms again:

(-24c) + (92)

Finally, the simplified expression is:

-24c + 92