20C0 - 20C1 + 20C2 - 20C3 + . . . + 20C10 = 1 - 20 + 190 - 1,140 + 4,845 - 15,504 + 38,760 - 77,520 + 125,970 - 167,960 + 184,756 = 92,378
X-6=0
Add +6 to both sides of the equation to get rid of -6 and leave x by its self.
X+1=0
Subtract -1 to both sides of the equation to get rid of +1 and leave x by its self.
Solution:
X= 6
X= -1
Hope this helped ;)
Answer:
cubic quadratic linear quadratic. first 4 rest i dunno
Step-by-step explanation:

try that then times it by 12.1