5n - 4 = 10n + 6-5n = 10n = -2
5n+6=-45n=-10n=-2
n=3
20n2+6n-2 (4n + 2)(5n -1) This problem can be solved by FOILing. First, multiply the first terms to get 20n2 Next, multiply the outside terms to get -4n. Multiplication of the inside terms results in 10n. Combining -4n and 10n (they are like terms) is 6n. Then, multiply the last terms, to get -2. Combining these answers into one equation gives the answer of 20n2+6n-2.
5n+4=0 5n=-4 n= -4/5
If the 10N force is positive, meaning to the north, then the 5N south would be negative, and the net force is 10N + (-5N) = 5N to the north.
5n - 4 = 10n + 6-5n = 10n = -2
5n+6=-45n=-10n=-2
n=3
5n+2 or 5n-2. I'll assume 10n 10,20,30,40,50
7n - 2 + 3n + 4 = 7n + 3n - 2 + 4 = 10n + 2 which can be simplified to 2(5n +1)
The magnitude of the resultant can be anything between 5N and 15N.
5m-5n+5m+5n When simplified: 10m
2N north
It wouldn't be moving at all
3n+5n=8n
6n + 5n is 11n.