Question

(-b-2)^2Хелп ми плиз​

Answer 1

(-b - 2)² = (-b)² - 2 * (-b) * 2 + 2² = b² + 4b + 4

Answer 2

Sure, I'd be happy to help you with the expression (-b-2)^2!

To simplify the expression (-b-2)^2, we need to square the entire quantity inside the parentheses. To do that, we'll apply the following rule:

(a - b)^2 = a^2 - 2ab + b^2

In this case, a = -b and b = 2. So, we can rewrite (-b-2)^2 as:

(-b-2)^2 = (-b)^2 - 2(-b)(2) + 2^2

Now, we just need to simplify the terms:

(-b)^2 = b^2 (since the square of a negative number is positive) -2(-b)(2) = 4b (multiplying -2 and -b gives a positive value) 2^2 = 4 (2 squared is 4)

Putting it all together:

(-b-2)^2 = b^2 - 4b + 4

That's the simplified form of the expression (-b-2)^2.