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Trinomial Cube

The trinomial cube is contained in a wooden box with lid, having two adjacent hinged sides that open out to display 27 wooden component cubes and prisms painted blue, red, yellow, and black.

The box is hinged and opens out to display the cubes. The lid is printed with the trinomial square pattern.

Dimensions: 5.5 x 5.5 x 4 inches

The trinomial cube is similar to the binomial cube, but has the following pieces instead: 

  • 1 red cube and 6 black and red prisms (varying in size) 
  • 1 blue cube and 6 black and blue prisms (varying in size) 
  • 1 yellow cube and 6 black and yellow prisms (varying in size) 
  • 6 black prisms (same size) 

This is similar to the binomial cube, but is a physical representation of this formula:   
{\displaystyle (a+b+c)^{3}=a^{3}+3a^{2}b+3a^{2}c+b^{3}+3ab^{2}+3b^{2}c+c^{3}+3ac^{2}+3bc^{2}+6abc}

It is an indirect preparation for mathematics

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