Desenvolva o cubo da diferença de dois termos :
a) (a-1)^3
b) (2x-3)^3
c) (2a-b)^3
d) (1-3a^2)^3
e) (5-x)^3
a) (a-1)^3
b) (2x-3)^3
c) (2a-b)^3
d) (1-3a^2)^3
e) (5-x)^3
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b) (2x-3)^3 -> 8x^3-36x^2+54x-27
c) (2a-b)^3 -> 8x^3-12a^2 b+6ab^2-b^3
d) (1-3a^2)^3 -> 1-9a^2+27a4-27a6
e) (5-x)^3 -> 125-75x+15x^2-x^3