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Posted by Cassie on Friday, March 15, 2013 at 10:19am.

Which is the extraneous solution of -x=sq root of 2x+15? A. -5 B. -3 C. 3 D. 5 I think it is D...?

you are correct if x = 5 LS = -5 RS = √(10+15) = √25 = 5 ≠ LS

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