SOLUTION: √8-x+6=4

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> SOLUTION: √8-x+6=4      Log On


   

Question 109206: √8-x+6=4
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
:
sqrt%288+-+x+-+6%29+=+4
:
sqrt%282+-+x%29+=+4
:
Square both sides:
2 - x = 4^2
:
2 - x = 16
:
-x = 16 - 2
:
-x = 14
:
We always want our unknown (x) to be positive, multiply equation by -1
x = -14
:
:
Check solution in original equation:
sqrt%288+-+%28-14%29+-+6%29+=+4
sqrt%288+%2B+14+-+6%29+=+4; minus a minus is a plus
sqrt%2816%29+=+4
:
Did this help you?
:
Next time you can write it Sqrt(8 - x - 6) = 4; brackets make it clear