What are the solutions of x^2 + 121 = 0?

A. - 11, 11

B. 11, 11i

C. 11, - 11i

D. - 11i, 11i

The answer would be D. - 11i and 11i

To solve this question you need to set up the equation and simplify

x^2 + 121 = 0 you need to get the x^2 by itself so subtract 121

x^2 = - 121 Now take the square root of both sides. but you can; t take the square root of a negative number which is where the i comes into play.

x = + - 11 i