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Introduction
Finding the Lowest Common Denominator
Arithmetic Sequence and Series
Finding Unit Digits of x^n
  FINDING THE LOWEST COMMON DENOMINATOR (LCD)
Thus add the missing factor of (x+1) needed for (x2 + 3x + 2) to get the

LCD = (x+2)(x+1)

Now using this approach at all grade levels there is consistency with the way it’s taught from elementary school all the way up to higher mathematics.
LCD?
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