factories 4ysquare - 4y + 1यूजिंग एक्सप्लोसीमीटर डेंसिटीज
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Step-by-step explanation:
= 4y²-4y+1
= (2y)²-2×2y×1+1²
Using this identity-- (a-b)²= a²-2ab+b²
= (2y-1)². Ans
Plz mark it as brainliest.
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