Answer:
I tried my best so I hope this helps :)
(look at the screenshots for the work I don't feel like typing it out)
Step-by-step explanation:
1.) the solution is [tex]x=\frac{-3+\sqrt{30}}{3}\\[/tex], [tex]x=-\frac{3+\sqrt{30}}{3}[/tex]
2.) the solution is [tex]n=4,\:n=-1[/tex]
3.) the solution is [tex]x=-4+\sqrt{26},\:x=-4-\sqrt{26}[/tex]
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
