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How could you use cubes to help you write an expression and model the problem

Sagot :

cupcakessprink
You can use cubes to help you write an expression and model the problem by using the cubes in replace of numbers. It should be a lot easier. Then after you finish you just have to write it down. There are other ways, but this is just one. 

Answer:

There are two ways in which cubes are used

1. When we represent Something Graphically, Instead of tally marks,or any other way of representation , we can represent things Pictorially, that is  we can replace frequency by shape of cubes.

There are five cubical Identity

[tex]1. (a+b)^3=a^3 +b^3+3 a b (a+b)\\\\ 2. (a-b)^3=a^3-b^3-3 a b(a-b)\\\\ 3. a^3 +b^3+c^3-3 a bc= (a+b+c)(a^2+b^2+c^2-a b-b c -c a)\\\\ 4. (a^3-b^3=(a-b)(a^2+b^2+a b) \\\\ 5. (a^3+b^3)=(a+b)(a^2+a b+b^2)[/tex]

With the help of these cubical  identity we can solve the cubes of any number or can model the problem.

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