EQUATIONS CONTAINING VARIABLES UNDER ONE OR MORE RADICALS


Note:



Example 4:

tex2html_wrap_inline127



Since the index of the radical is odd, there is no restrictions on the value of x in this problem.




Raise both sides of the equation to the power 3.

equation50



Subtract 15 from both sides of the equation

displaymath124




Multiply both sides of the equation by tex2html_wrap_inline129

eqnarray75




The answer is x = -10.5




Check the solution by substituting -10.5 in the original equation 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.



If you would like to work another example, click on example

If you would like to test yourself by working some problems similar to this example, click on problem.

If you would like to go back to the equation table of contents, click on contents.


[Algebra] [Trigonometry]
[Geometry] [Differential Equations]
[Calculus] [Complex Variables] [Matrix Algebra]

S.O.S MATHematics home page