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RADICAL EQUATIONS AND EXPRESSIONS |
As was noted in previous units,
non-solutions to an equation can be as important to a problem (and sometimes
more important) as is a solution. In rational expressions and equations, values
that caused division by zero had to be identified and restricted from the
problem. Also recall that in addition to these “natural” restrictions, we may select
our own restrictions for a problem as was the case with piecewise functions.
For this unit, we will examine restrictions that may be placed on a problem
which may be due to our choice, or because of the laws of mathematics, or as a
combination of the two. First we will review methods for solving equations that
involve radical expressions and simplify rational expressions with radical
denominators.
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 Squares and Square Roots (01:52) |
| Higher Roots (05:09) |
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