Question

If the length of a side of a square is 2a - b, what is the area of the square, in the terms of a and b

Answer 1

• 4a² - 4ab + b²

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If one side of a square is 2a - b, then the area is:

• A = (2a - b)²
• A = 4a² - 4ab + b²

So the area is 4a² - 4ab + b².