SOLUTION: how do you solve 2 (radical)x+4 =8 ????? Thanks

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Question 158281: how do you solve
2 (radical)x+4 =8
?????
Thanks
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Is the equation 2%2Asqrt%28x%2B4%29=8 ??


2%2Asqrt%28x%2B4%29=8 Start with the given equation.


sqrt%28x%2B4%29=4 Divide both sides by 2.


x%2B4=16 Square both sides.


x=16-4 Subtract 4 from both sides.


x=12 Combine like terms on the right side.


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Answer:

So the answer is x=12