Answers

  • Brainly User
2015-11-02T19:50:25+08:00
Cube of Binomial:
Example:
(x + 2)³

First term: x
Last term: 2

Steps:
1)  Cube the first term
     = x³

2) 3 (first term)² (last term)
    3 (x)² (2) 
   = 6 x²

3) 3 (first term) (last term)²
    3 (x) (2)²
    (3x) (4)
    = 12x

4) Cube the last term
   (2) ³ = (2) (2) (2)
          = 8

5) Combine the result of each step:
    x³ + 6x² + 12x + 8



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