Answer:
<h2>10n - 3p - 12</h2>
Step-by-step explanation:

X² - 16x + 17 = 0
x² - 16x + 8² - 8² + 17 = 0
(x - 8)² - 64 + 17 = 0
(x - 8)² - 47 = 0
-----------------------------------------------------------------------------------------
Answer: y = (x - 8)² - 47 (Answer D)
-----------------------------------------------------------------------------------------
Answer:
5√2
I think, that sign mean square root.. just letting you know.
Hope I helped!
<em>*simplyeliza*</em>