SOLUTION: Sqrt 3k-5-sqrt 3k= -1

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Question 1204536: Sqrt 3k-5-sqrt 3k= -1
Found 2 solutions by Alan3354, mananth:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Sqrt 3k-5-sqrt 3k= -1
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If it's sqrt%283k-5%29-sqrt%283k%29+=+-1
sqrt%283k-5%29+=+sqrt%283k%29+-1
Square both sides
3k-5+=+3k+-+2sqrt%283k%29+%2B+1
2sqrt%283k%29+=+6
sqrt%283k%29+=+3
3k = 9
k = 3

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
I assume this the problem you jntended .

sqrt+%283k-5%29-sqrt%28+3k%29=+-1

square both sides

%283k-5%29-2sqrt%28+9k%5E2-15k%29%2B3k+=+1
6k-5+-2sqrt%289k%5E2-15%29=1

2sqrt%289k%5E2-15%29=+6-6k
/2
sqrt%289k%5E2-15%29=+%286-6k%29%2F2=%283-3k%29

square
9k%5E2-15=+9-18k%2B9k%5E2
3k =9
k=3