## Factoring the Sum and Difference of Cubes

So, to factor, I'll be plugging 3x and 1 into the sum-of-cubes formula. This gives me: 27 x3 + 1 = (3 x) 3 + 1 3 = (3 x + 1) ( (3 x) 2 − (3 x ) (1) + 1 2) = (3x + 1) (9x2 − 3x + 1) Content Continues Below

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## Factoring the Sum of Cubes

How To Use the Sum of Cubes Formula Give Steps? Firstly observe the pattern of the two numbers whether the numbers have ^3 as power or not. Write down the sum of cubes formula  Scan

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## Sums and Differences of Cubes, & Perfect Squares

You just have to change two little signs to make it work. The sum of two cubes equals the sum of its roots times the squares of its roots minus the product of the roots, which

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## Sum or Difference of Cubes

Since a is the cube root of the first term, we know a = x 3 3 = x . Likewise, since b is the cube root of the second term, we know b = 1 3 = 1 . Step 2. Write down the factored form. a 3 + b 3 = ( a +

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## Sum of Cubes Formula

The formula to find the sum of cubes of n natural numbers is S = [n 2 (n + 1) 2 ]/4, where n is the count of natural numbers that we take. For example, if you want to find the sum of cubes of 7

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