Imaginary numbers: solve this problem: (X-7)^2 =- 4 for x

Hi, Please help me solve this problem

(X-7)^2 =- 4 for x
You've been provided two hints. Now please reply showing your thoughts and efforts so far, based on what you learned from your textbook, your class notes, and the various online resources you've accessed (such as here and here) for solving this.

Thank you! ;)
 
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