Answer: 
Step-by-step explanation:
Rewrite the expression:

Factor out the negative:


Rewrite the sum:


Calculate the sum:


Solve:


Please mark brainliest if this helped you :)
I don't think this is possible...
But if you mean 9 then the root is 3
multiply all the factors in x^2
to get the roots which are 0, 11/6 and 8/7