Question

2b(7-b)-(a+2b)(3-b)=

Answer 1

Ответ:

ab-3a+8b

Объяснение:

Answer 2

To simplify the expression 2b(7-b) - (a+2b)(3-b), you can follow these steps:

1. Expand the terms inside the parentheses: 2b(7-b) = 14b - 2b^2 (a+2b)(3-b) = 3a - ab + 6b - 2b^2

2. Now, subtract the second expression from the first: 14b - 2b^2 - (3a - ab + 6b - 2b^2)

3. Distribute the negative sign inside the parentheses: 14b - 2b^2 - 3a + ab - 6b + 2b^2

4. Combine like terms: (14b - 6b) + (-2b^2 + 2b^2) - 3a + ab

5. Simplify further: 8b - 3a + ab

So, the simplified expression is 8b - 3a + ab.