Question

(a-2b)2 expand this
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Answer 1

Answer:

(a-2b)²

it's in form of (a-b)²=a²+b²-2ab

a=a

b=2b

a²+(2b)²+2(a)(2b)

a²+4b²+4ab

a²+4b²+4ab is the answer

Answer 2

Answer :

= ( a - 2b)²

• Using (x - y)² = x² - 2xy + y² expand the expression

= (a)² - 2 × a × 2b + (2b)²

• Calculate the product

= a² - 4ab + 4b²

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