factorize - 4/9x²-12xy²+81y⁴
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Answer:
Step-by-step explanation:
4/9x²- 12xy² + (9y)²
(2/3x)² - 2(2/3x)(9y) + (9y)²
therefore we get an identity a² + b² + 2ab = (a + b)²
ans (2/3 - 9y)² ( upon factorizing we get this )
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