Answer:
A = 4a² - 4ab + b²
Step-by-step explanation:
The area (A) of a square is calculated as
A = s² ( s is the side length ) , so
A = (2a - b)² ← expand using FOIL
= (2a)² - 2ab - 2ab + (- b)²
= 4a² - 4ab + b²
11
first (x-5) you would substitute x for 11 then subtract 5. next you would multiple by 2 and your answer would be 12
Your answer would be 12
Hopefully this helped, if not HMU and I will try my best to get you a better answer! :)
