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TuukkaX
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TuukkaX
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Sorry for the reupload! Somehow, the previous question didn't show up at all on the questions page. Now it appeared. This is an useless post, and please delete this if you moderate.
TuukkaX
Oct 2, 2016
0
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Solving N from equation: n * (n + 1) / 2
I'm trying to solve N from
Let's say N = 4, thus the result is (1 + 2 + 3 + 4) ---> 10.
Steps:
read more ..
MaxWong
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TuukkaX
Oct 2, 2016
#3
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How does
\({n}^{2}+n-20=0\)
become
\((n+5)*(n-4) = 0\)
How did you come up with that?
TuukkaX
Oct 2, 2016
