So what is your question cause there isn't one
Answer:

Step-by-step explanation:
As square root value is written with both + and - signs
In Given case:
A polynomial has root 
= ±3.316
Also 
= ±3.316
Hence
is also root of the polynomial!
Answer:
25
Step-by-step explanation:
10+6/ [(-7) - (-5)] * [(-10) +5]
10+6 / [-2] * [-5]
10+ (-3) * (-5)
10+ 15
= 25
Answer:
y=16
Step-by-step explanation:
basicily what you have to do here is you got to multiply 8*2
I honestly wish I could help you but that looks extremely hard