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← Area and Factors - Visualizing Algebra

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Showing Revision 2 created 05/25/2016 by Udacity Robot.

  1. We work with numbers, so of course, what are we going to do next? Let's work
  2. with variables. The variable just holds the place of a number. So this x could
  3. just be like my 10. Here's another rectangle to represent this expression. One
  4. side or one factor is x, and the other factor is x plus 2. The sides of this
  5. rectangle represent the factors in this expression. Factors are simply numbers
  6. that are multiplied together. Here's the first number x and here's the second
  7. number x plus 2. We know each of these is just a number because x represents a
  8. number. So, here's one number this would be a different number. Using what we
  9. saw before, what do you think each of these areas are?