EQUATIONS CONTAINING VARIABLES UNDER ONE OR MORE RADICALS
Note:
of the radical.
solutions; therefore, you must check your answers.
restriction on the values of x.
for x. If the left side of the equation equals the right side of the
equation after the substitution, you have found the correct answer.
Example 5:.
Since the index of the radical is odd, there is no restriction on the value
of x.
Raise both sides of the equation to the power 7.
Add 3 to both sides of the equation
Divide both sides of the equation by 5.
The answer is
Check the solution by substituting in the original equation
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