Question

factorise the -4x²+4xy-y²​

Answer 1

Answer:

$-4x² + 4xy - y²\\- { 4x² - 4xy + y² }\\- { (2x)² - 2×2x×y + (y)² }\\- { ( 2x - y)² }\\-1(2x - y)²$

Step-by-step explanation:

Answer 2

Answer:

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Step-by-step explanation:

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