An algebraic fraction is undefined when
?
the numerator equals zero
the denominator equals zero
it includes decimals
there is a variable in the denominator
.
An apparent solution that does not satisfy the original equation is called
?
an extraneous
a double
a principal
a multiple
solution.
We may introduce extraneous solutions if we multiply both sides of an equation by
?
a nonzero integer
an expression containing the variable
any irrational number
.
We must multiply each
?
term
denominator
fraction only
of the equation by the LCD.