Question

When the equation 2x+15−−−−−−√−x=0 is solved correctly, the solutions are x=−3 and x=5.

Which, if any, of the solutions are not valid?
A) The solution x=−3 is not valid.
B) The solution x=5 is not valid.
C) Neither solution is valid.
D) Both solutions are valid.

Answer 1

B x=5 is not valid Bc that would =10