A and E.
x= (1+ root-71)/6 and x= (1-root-71)/6
Answer:
-7
Step-by-step explanation:

it is possible because x is just a letter representing the unknown nos
CML must be an obtuse angle.
Since CMW and WML together form CML, and CMW is a right angle, then CML must be larger than a right angle, which makes it obtuse.