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factorise 8x3 + 27y3 are_______:

(2X ± 3Y)(4X2 + 9y2)

(2X + 3y)(4x2 - 6xy + 9y2)

(2X - 3Y)(4X2- -9y2)

(2X - 3Y)(4X2+6xy+9y2)