How do you find the two solutions to the #sqrt(145)#?

1 Answer
Feb 5, 2015

Watch out: the square root of a number #x# is a unique number, defined as the positive number #y# such that #y^2=x#; and in that case, we say that #\sqrt{x}=y#.

So, the square root of #145# is a unique number. If you speak of solutions, you are referring to the equation #x^2-145=0#, which solutions are #\pm\sqrt{145}#.