Question

4. Which of the following are solutions of the equation 3x2 +27=0 ? Select all that apply.
-13
-3
-3i
I/3
3
зі
REFER TO PIC

Answer 1

The choose ; 3i , – 3i

3x²+27=0 —> 3x² = - 27 —> x²= - 27/ 3 = - 9

x = √ - 9 = √-1 × √9 = 3 i

I hope I helped you^_^