Asked by Cassie
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...?
A. -5
B. -3
C. 3
D. 5
I think it is D...?
Answers
Answered by
Reiny
you are correct
if x = 5
LS = -5
RS = √(10+15) = √25 = 5 ≠ LS
if x = 5
LS = -5
RS = √(10+15) = √25 = 5 ≠ LS
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