Question

(5,7а²-2,1ав+в²)-(3,9ав-0,3а²+2в2)

Answer 1

Відповідь:

Пояснення:

Answer 2

To simplify the expression, let's combine like terms by performing the subtraction:

(5a² - 2.1ab + b²) - (3.9ab - 0.3a² + 2b²)

Now, distribute the negative sign to each term inside the second parentheses:

5a² - 2.1ab + b² - 3.9ab + 0.3a² - 2b²

Next, group the like terms together:

(5a² + 0.3a²) + (-2.1ab - 3.9ab) + (b² - 2b²)

Combine the like terms within each group:

5.3a² - 6ab - b²

Therefore, the simplified expression is 5.3a² - 6ab - b².