SOLUTION: Please solve the equation and be sure to check your solution. sqrt of 4x+1+3=0

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Question 49776: Please solve the equation and be sure to check your solution.
sqrt of 4x+1+3=0
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
%28sqrt+%284x%2B1%29%29%2B3=0%29
.
%28sqrt+%284x%2B1%29%29%2B3-3=0-3%29
.
%28sqrt+%284x%2B1%29%29=-3%29
.
%28sqrt+%284x%2B1%29%29%5E2=%28-3%29%5E2
.
4x+1=9
4x+1-9=9-9
4x+1-9=0
4x-8=0
4x-8+8=0+8
4x/4=8/4
x=2
.
check by plugging x=2 back into the original equation. Remember that the square root is "plus" or "minus" a number, so try both.