Website Statistics Factorise completelyi xy183y6xii 8x72y2

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Bonjour!

Factorise:

(i) xy-18+3y-6x= xy+3y-6x-18= y(x+3)- 6(x+3)= (x+3)(y-6)

(ii) 8x²-72y²= 8(x²-9y²)= 8(x-3y)(x+3y) .

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