√-1=i
13-√-18=
13-√(-1)(18)=
13-(√-1)(√18)=
13-(i)(3√2)=
13-3i√2
Answer:
1/3
Step-by-step explanation:
ok so make a common denominator
16/24-12/24=8/24
8/24 reduces to 1/3
Answer:
(x·)-4
If that's not what you're looking for here's an example of what you would do if you put a number (6, for example) into the equation and the answer is the unknown number:
(6·)-4= x
- I’m assuming the expression implies the following:
(1-n)/(n^2 - 1)
The steps goes as follows:
= -(n-1)/(n^2-1) (factored a negative out)
= -(n-1)/[(n+1)(n-1)] (Factored denominator into a difference of squares, but don’t just blindly accept the fact, expand it and you should get the original denominator)
At this point, the (n-1) terms cancel, as you should know: a real number, besides 0, over itself is 1.
= -1/(n+1) , which is the answer
Note: You could also see it as 1/-(n+1) or 1/(-n-1)
I’m going with 26 units apart