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seen Apr 15 at 12:36

Jan
14
comment Is it more practice and intuition or rather algorithmic to solve third degree polynomials of this type?
My brain does not work like yours, but I hope it starts to soon.
Jan
14
comment Is it more practice and intuition or rather algorithmic to solve third degree polynomials of this type?
Luckily this is a nice equation, thank you I have at least one extra tool in my belt and I will need to read up more on the rational root theorem among other things. Your answer is very clear and concise.
Jan
14
accepted Is it more practice and intuition or rather algorithmic to solve third degree polynomials of this type?
Jan
14
revised Is it more practice and intuition or rather algorithmic to solve third degree polynomials of this type?
forgot to square second term first equation
Jan
14
comment Is it more practice and intuition or rather algorithmic to solve third degree polynomials of this type?
Yes, sorry forgot to square that one.
Jan
14
comment Is it more practice and intuition or rather algorithmic to solve third degree polynomials of this type?
I kind of get what you and Will Jagy are saying, but it will take time to absorb. The only thing that is immediately obvious from your last equations is that c = 6. I appreciate your helps.
Jan
14
asked Is it more practice and intuition or rather algorithmic to solve third degree polynomials of this type?
Jan
14
accepted The author of my book simplifies his solutions to an extent that I am uncomfortable with, so are my solutions to homework over doing it?
Jan
14
comment The author of my book simplifies his solutions to an extent that I am uncomfortable with, so are my solutions to homework over doing it?
@joejacobz Johnsonbaugh, Richard. Discrete Mathematics, 7th ed.
Jan
14
asked The author of my book simplifies his solutions to an extent that I am uncomfortable with, so are my solutions to homework over doing it?
Jan
11
comment How do I show that two sets are equal.
@amWhy Hopefully its complete and valid, for reals this time.
Jan
11
revised How do I show that two sets are equal.
finished the proof (for real this time)?
Jan
11
comment How do I show that two sets are equal.
Thank you, this will take some getting used to but I think I am seeing the logic better, I should probably delete the previous comments though to save space.
Jan
11
accepted How do I show that two sets are equal.
Jan
11
revised How do I show that two sets are equal.
finished the proof
Jan
11
asked How do I show that two sets are equal.
Jan
11
accepted Will SADMEP always work to evaluate the inverse of a function, and I should not evaluate right to left?
Jan
11
comment Will SADMEP always work to evaluate the inverse of a function, and I should not evaluate right to left?
Yes I am taking it as an algorithmic method to evaluating, where it uses the reverse steps as PEMDAS. Thank you for clarifying why this SADMEP is not "literally" the opposite in the sense that I have considered it.
Jan
11
comment Will SADMEP always work to evaluate the inverse of a function, and I should not evaluate right to left?
So there is no reason to use SADMEP, and infact it is not a correct method? I think maybe if there is a correct SADMEP, it is very ambiguous and apparently beyond me at this point. That is, starting with subtraction and ending with exponents/parentheses is itself not correct.
Jan
11
comment Will SADMEP always work to evaluate the inverse of a function, and I should not evaluate right to left?
I see that it is false, I was very suspicious of that statement and now I see why I was mistaken.