Answers I know how to do:
Q2)
[tex]x-18+18=-5+18 \\[/tex]
Answer would be:
[tex]x=13[/tex]
Step-by-step explanation:
1. 16x√2x
2. x = 13
3. Not know sorry
4. x = 16.6024, - 6024
5. ( x²+6) ( x²+12)