Question

-6(5m-n)²7 класс!!!!!!!!!! ​

Answer 1

Ответ:

-150m² + 60mn - 6n²

Объяснение:

-6(5m-n)² = -6(25m²-10mn+n²) = -150m² + 60mn - 6n²

Answer 2

Hello! It seems like you want help simplifying the expression: -6(5m-n)². Let's go through the steps:

Step 1: Square the expression inside the parentheses. (5m - n)² = (5m - n) × (5m - n)

Step 2: Multiply the two binomials using the FOIL method (First, Outer, Inner, Last). (5m - n) × (5m - n) = 25m² - 5mn - 5mn + n² = 25m² - 10mn + n²

Step 3: Multiply the result from Step 2 by -6. -6(25m² - 10mn + n²) = -150m² + 60mn - 6n²

So, the simplified expression is: -150m² + 60mn - 6n².

If you have any further questions or need additional help, feel free to ask!