Question

8. Factorise: (5x + 4y)? – (3x – 2y)?.​

Answer 1

Answer:

5x-3x+4y+2y

2x+6y

2(x+3y)

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Answer 2

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${(5x + 4y)}^{2} - {(3x - 2y)}^{2}$

$= (5x + 4y + 3x - 2y)(5x + 4y - 3x + 2y)$

$= (8x + 2y)(2x + 6y)$

$= 4(4x + y)(x + 3y)$

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