Question

−9(5−b)+4(−2b−2)−6(−8+b).

Answer 1

Ответ:

Объяснение:

−9(5−b)+4(−2b−2)−6(−8+b)=

-45+9b-8b-8+48-6b = -5b - 5

Answer 2

To simplify the expression −9(5−b)+4(−2b−2)−6(−8+b), you can use the distributive property (also known as the FOIL method) to multiply each term inside the parentheses by the coefficient outside the parentheses and then combine like terms. Here's the step-by-step simplification:

1. Distribute -9, 4, and -6 to the terms inside the parentheses:

   -9(5 - b) = -45 + 9b 4(-2b - 2) = -8b - 8 -6(-8 + b) = 48 - 6b

2. Now, substitute the distributed terms back into the original expression:

   (-45 + 9b) + (-8b - 8) + (48 - 6b)

3. Combine like terms. Combine the b terms and the constant terms separately:

   (9b - 8b - 6b) + (-45 - 8 + 48)

4. Simplify further:

   (9b - 8b - 6b) = -5b (-45 - 8 + 48) = -5

So, the simplified expression is:

-5b - 5