Factories:
8(2a+3b)^3 - 12(2a+3b)^2
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first of all it is in(a+b)^3 and(a+b)^2 formula
expand the equations 8((2a) ^3+3(2a)^2(3b)+3(2a)(3b) ^2+(3b) ^3)-12((2a) ^2+2(2a)(3b) +(3b) ^2)
8(8a^3+36a^2b+54ab^2+27b^3)-12(4a^2+9b^2+12ab)
multiply coeficeints inside
64a^3+288a^2b+424ab^2+216b^3-48a^2-108b^2-144ab
answer is 64a^3+288a^2b+424ab^3+216b^3-48a^2-108b^2-144ab
expand the equations 8((2a) ^3+3(2a)^2(3b)+3(2a)(3b) ^2+(3b) ^3)-12((2a) ^2+2(2a)(3b) +(3b) ^2)
8(8a^3+36a^2b+54ab^2+27b^3)-12(4a^2+9b^2+12ab)
multiply coeficeints inside
64a^3+288a^2b+424ab^2+216b^3-48a^2-108b^2-144ab
answer is 64a^3+288a^2b+424ab^3+216b^3-48a^2-108b^2-144ab
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