SOLUTION: Solve the equation {{{(3x+4)^2=30}}}

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Question 605693: Solve the equation %283x%2B4%29%5E2=30
Answer by mathie123(224) About Me  (Show Source):
You can put this solution on YOUR website!
%283x%2B4%29%5E2=30
We need to isolate for x. This means, we must first get rid of the exponent. To get rid of an exponent of 2, we can take the square root of both sides, which leaves:
3x%2B4=sqrt%2830%29
Now sqrt%2830%29 is just a number, so we can just treat it as any other number (if it is easier for you, you can also type this onto your calculator and get a decimal number instead).
We will now isolate for x:
3x=sqrt%2830%29-4
x=%28sqrt%2830%29-4%29%2F3
Hopefully this helps:) let me know if you are still unsure about anything:)