Solve 2x2 + 8 = 0 by graphing the related function. There are no real number solutions.
There are two solutions: V8.
There is one solution: 2
There are two solutions: 2 and -2.

there are no real number solutions

Step-by-step explanation:

2x² + 8 = 0

x² + 4 = 0

x² = -4

these solutions all involve "i", the imaginary or complex numbers, as normally the square of any number has to be positive (and cannot be negative).