The SQUARE roots are -140 and +140.
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
19600 pennies1 dollar = 100 pennies$196:= $196 * 100 pennies/$1= 19600 pennies
0.4499
19600
19600
Surds are based on roots. Root 8 can be split into root 4 and root 2; as there's a root to 4, get that number, and multiply it by the remaining root. So root 8 = 2 root 2. Root 40 would be 2 root 10 Root 48 would be root 4, root 4, root 3 Root 48 = 4 root 3.
The square root of 19, 600 is 140.
There are 1.609344 kilometres in one mile. Therefore, 19600 miles is equal to 19600 x 1.609344 = 31543.1424 kilometres.
Least common multiple for 80 and 4900 is 19600.
19600 pennies1 dollar = 100 pennies$196:= $196 * 100 pennies/$1= 19600 pennies
58800
31 543.1424 kilometers
Windows calculator says 364560.
0.4499
19600 squared inches
0.0001
19600
19,500 as only 25 away whereas 19,600 is a larger 75 away