Factorise: 8(cube of a) + (cube of b) + 12 (square of a)(b) + 6(a)(square of b)?

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8a^3+b^3+12(a^2)b +6a(b^2) = (2a)^3+(b^3)+3 x( (2a)^2) (b) + 3 x (2a) x (b^2) = ((2a+b)^3). Cube of (2a+b).
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