I'm lost to what steps he took between (1) and (2). Can anybody explain it to me?
sure
>>8205305
Factor out (K+1)/6
>>8205306
Please do, you cheeky cunt.
>>8205305
When you have to fractions being added to each other. Say
a/b + c/d
Also, just assume that your d=1 so you have
a/b + c/1
How do you turn that into a single fraction?
Yes, the answer is by giving up and studying gender studies.
>>8205309
That gives
(k+1)/6 [k(2k+1)] + (k+1)^2
How do I simplify further?
>>8205318
Almost. Factor it out from both sums.
Grab a piece of paper and a pencil. Take the two terms and find a common denominator. Now add them together to get one term. Now factor out [math]/frac{(k+1)}{6}.[/math] You had trouble with that but had no issue with the step from 2 to 3?
>>8205318
You are first supposed to join the fractions and then factor out (k+1)/6
You just did it wrong.
desu spivak might be a little above your level op
