SOLUTION: Solve for a. 2√a-1 = 4√a If you could show every step I would appreciate it!!!

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Question 143240: Solve for a. 2√a-1 = 4√a
If you could show every step I would appreciate it!!!
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
2sqrt%28a-1%29=4sqrt%28a%29

Square both sides:
4%28a-1%29=16a

Distribute:
4a+-+4+=+16a

12a+=+-4

a=-1%2F3

The single root to this equation is extraneous, therefore there is no solution.