What are the formulas sum of perfect cubes and difference of perfect cubes?

bobpursley said to use them in one of my other posts but I don't know those formulas.

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  1. Fill in the blanks!- Perfect cubes - 1 unit^(3) 1 x 1 x 1 = 1 - 64 units^(3) 4 x 4 x 4 = _ - 512 units^(3) 8 x 8 x 8 = _ - 729
    1. answers icon 1 answer
  2. Fill in the blanks!- Perfect cubes - 1 unit^(3) 1 x 1 x 1 = 1 - 64 units^(3) 4 x 4 x 4 = _ - 512 units^(3) 8 x 8 x 8 = _ - 729
    1. answers icon 1 answer
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