Answer:

Step-by-step explanation:
If the complex number
is a root of a cubic function, then the complex number
is a root too. Thus, the cubic function has three known roots
and can be written as

Answer: 72/35
Step-by-step explanation:
10/-8 = -8/10 = -.8
-0.8*(2/7)*-9= about 2.06.(72/35)