Question

x² + 1 = 0
equation
formula.
​

Answer 1

Step-by-step explanation:

x^2 = -1

→ x = ±√ -1

Hence , x = ± Ii

Answer 2

Answer:

${x}^{2} - 1 = 0 \\ x = + \sqrt{ - 1}$

then x=+