Question

factorise 4y^2-4y+1​

Answer 1

4y^2-4y+1 = (2y-1)²

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Answer 2

Answer:

(2y-1)²

Step-by-step explanation:

4y²-4y+1

4y²-2y-2y+1

[2y(2y-1)]-[1(2y-1)]

(2y-1)(2y-1)

(2y-1)²