(2xy - 5y)^2 use a suitable identity to get the following products
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Answer:
4x²y² + 25y² - 20xy²
Step-by-step explanation:
(2xy - 5y)²
use (a - b)² = a² + b² - 2ab
(2xy - 5y)²
= (2xy)² + (5y)² - 2(2xy)(5y)
= 4x²y² + 25y² - 20xy²
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