Respuesta :
[tex]\textbf{Answer:}[/tex]
3i√7
[tex]\textbf{Step-by-step explanation:}[/tex]
Rule for negative square roots: √-1=i
√-63
√-1•63
√-1•9•7
3i√7
3i√7
[tex]\textbf{Step-by-step explanation:}[/tex]
Rule for negative square roots: √-1=i
√-63
√-1•63
√-1•9•7
3i√7