I hope this helps you
b^2= - 36
b^2= - 1.6^2
b^2= i^2.(+,-6)^2
b=6i
b= - 6i
or b isn't real number there is no solution....
Answer: ±6i
Step-by-step explanation:
[tex]b^2+36=0\\\\b^2\qquad =-36\\\\\sqrt{b^2}\quad =\sqrt{-36}\\\\|b|\qquad =\sqrt{-1\cdot 6 \cdot 6}\\\\|b|\qquad =6i\\\\\large\boxed{b \qquad=\pm 6i}\\[/tex]
