The last one is rightHope this helps!
Answer:
1. x = -6, -8, -90
2. solutions for
include -5, while -5 is not a solution for 
Step-by-step explanation:
9*(x-1)=2x-7
First get rid of your parenthesis by distributing.
9x-9=2x-7
Then all you have to do is isolate the variable
9x=2x+2
7x=2
so x= 2/7
Answer:
For
it will be plus or minus 
For
it will be plus or minus 
Step-by-step explanation:
Well for
it will be 5i
Because i = -1