SOLUTION: What is the solution for sqrt(2x + 1) + 5 = 2?

Algebra ->  Real-numbers -> SOLUTION: What is the solution for sqrt(2x + 1) + 5 = 2?       Log On


   

Question 699053: What is the solution for sqrt(2x + 1) + 5 = 2?
Found 2 solutions by tommyt3rd, dkppathak:
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
This equation has no solution:

%0D%0Asqrt%282x+%2B+1%29+%2B+5+=+2%0D%0A
simplifies to
%0D%0Asqrt%282x+%2B+1%29+=-3%0D%0A
...but square roots can never be negative.



:)

Answer by dkppathak(439) About Me  (Show Source):
You can put this solution on YOUR website!



sqrt (2x +1) +5 =2
sqrt (2x=1) =2-5
sqrt (2x+1) =-3
squaring both side
2x+1 = 9
2x = 9-1
2x =8
x= 8/2
x = 4
ANSWER
X =4