Question

Factorise 4(x+y)2 - 9(x-2y)?​

Answer 1

Answer:

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[(2(x+y)]² - [(3(x-2y)]²

(2x+2y)² - (3x - 6y)²

a²-b² = (a+b)(a-b)

(2x+2y+3x-6y)(2x+2y-3x+6y)

(5x-4y)(-x+8y)

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Step-by-step explanation: