SOLUTION: I am very confused with how radical equations work...everything about them is confusing to me. I do know what a radical is, what the radicand, index and so forth is. I also know ho

Algebra ->  Radicals -> SOLUTION: I am very confused with how radical equations work...everything about them is confusing to me. I do know what a radical is, what the radicand, index and so forth is. I also know ho      Log On


   

Question 1089372: I am very confused with how radical equations work...everything about them is confusing to me. I do know what a radical is, what the radicand, index and so forth is. I also know how to extract the square root and basic adding of radicals, but when it comes to equations I'm lost.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
3%2A3=9
3%2A3=3%5E2
3%5E2=9

-
%28what%29%28what%29=9

sqrt%289%29%2Asqrt%289%29=9--------what is square root of 9?

sqrt%289%29=3
-
x%2Ax=x%5E2=3
Now, what is this number, x?
sqrt%283%29sqrt%283%29=3
or
%28sqrt%283%29%29%5E2=3

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
See the lesson
    - HOW TO solve equations containing radicals
in this site.