Question

x^2-5=0
one real solution, two imaginary solutions, or two real solutions?

Answer 1

Add 5 to both sides.

\( \color{Black}{\Rightarrow x^2 = 5 }\)

We know that there are two square roots...one positive and one negative.

Answer 2

\( \color{Black}{\Rightarrow x = \pm(\sqrt5) }\)