Factorise
4x^2 +9y^2 - 12xy
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Answer:
(2x - 3y)²
Explanation:
4x² + 9y² - 12xy
= (2x)² + (3y)² - 2 × 2x × 3y
(Since, a² + b² - 2ab = (a- b)²
= (2x - 3y)²
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