So I've set a goal for myself to relearn all the math I once knew, one textbook at a time. Realizing I could do at age 10 what I can't do now is humbling. Anyway.
I've got this problem and can't figure out how to get the correct answer:
c-2 - 1
c-1 + 1
I've tried to work it as follows:
-- - 1
--- + 1
Clear the fraction by multiplying by c2 across all numerators.
1 - c2
c + c2
However, my book says the answer is:
1 - c
I can't for the life of me get there.
Oh good lord. After trying for over an hour I worked backwards from the given solution and got how to simplify to the correct answer.
However, if this had been a proper exam I would've never thought to factor down to what is 'correct'. I only got there because I knew what was right.
Any tips on knowing when factoring is possible? Or quicker ways to recognize those patterns? Help would be appreciated.]]