Question

7(а+б)² -14 абркшитеееее​

Answer 1

Ответ:

7(a^2+b^2)

Вот!!!!!!!

Answer 2

To simplify the expression 7(a + b)² - 14ab, you can follow these steps:

1. Expand the square (a + b)²:

(a + b)² = a² + 2ab + b²

2. Multiply the result by 7:

7(a² + 2ab + b²) = 7a² + 14ab + 7b²

3. Subtract 14ab from the expression:

7a² + 14ab + 7b² - 14ab

Now, you can simplify further by combining like terms:

7a² + 14ab - 14ab + 7b²

The middle terms (-14ab and +14ab) cancel each other out, leaving you with the simplified expression:

7a² + 7b²