F ( x ) = x^4 + 16 x² =
= x² · ( x² + 16 )
For x² + 16:
x 1/2 = (0+/-√(-64))/2= +/-8 i /2 = +/- 4 i
x² + 16 = ( x + 4 i ) · ( x - 4 i )
Answer:
f ( x ) = x² · ( x + 4 i ) · ( x - 4 i )
Answer:
No solution.
Step-by-step explanation:
6(n −1) + 2 = n(4 + 2) + 4
6n - 6 + 2 = 6n + 4
-4 = 4 (inconsistency)
Answer:
Speed of boat in still water is 6km/h
Speed of current is 4km/h
Step-by-step explanation:
We know speed = distance / time
Let the speed of boat in still water be x
Let the speed of current be y
Hence the speed of boat, down stream = 
Distance downstream = 20km
Time taken = 2 hours
We have

......(1)
Speed of boat upstream = 
Distance upstream = 4
Time taken = 2
We have

...(2)
Adding (1) & (2)


Substituting in (1) we get

Answer:
Step-by-step explanation:
10 2/4
1 1/4 + 3/4= 2
2+8= 10
10+2/4= 10 2/4
Answer:
Ac=14 is you answer i think
Step-by-step explanation:
Hope this helps