Question

( 3b - 4b ) ² ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ​

Answer 1

b^2

Explanation:

using formula of (a-b)^2

Then

(3b)^2-2*3b*4b+(4b)^2

Answer 2

b

Explanation:

Use the formula PEMDAS

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

So to solve this problem you need to do what's inside the parentheses

(3b-4b)=-b

(-b)^2

That's equal to b

So the answer is b