# Search for tag: "f."

#### Finding the LCD of rational expressions with quadratic denominators

Each denominator is factored and then any common factor is used only once and all other unique factors complete the LCD

From  Tom Grant 5 plays 0

#### Union and intersection of intervals

A demonstration of how to deal with interpreting the union and intersection of two inequalities. For a more extensive and exhaustive demo, please view the videos entitled "Understanding…

From  Tom Grant 15 plays 0

#### Simplifying a quotient involving a sum or difference with a square root

Demonstrations that emphasize the fact that a fraction bar acts like parentheses in that the each part of the fraction must be factored so that there is a product of factors on both top and bottomof…

From  Tom Grant 18 plays 0

#### Evaluating a rational function: Problem type 1

For an equation with f(x) equal to a rational expression, this shows how to write the substitution and simplification when putting in a particular value for x.

From  Tom Grant 7 plays 0