Respuesta :

Answer:

Simple!

Step-by-step explanation:

I'll just solve it!

[tex]3h^{2} =h^{2}+18\\ 2h^{2} =18\\h^{2} =9\\h=3, h=-3[/tex]

There you go!

Hope this helps!

P.S. Stay Safe!

h=3 or h=-3 is the answer for u in this instance