I'm having a tough time understanding these: X^6 - 1 And if you can, please give me a little explanation on how you got the answer.
Last edited by Connor; Jan 12th 2011 at 04:19 PM.
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Does this help for the first one?
Do you want all the solutions or just the two real solutions?
Originally Posted by Connor I'm having a tough time understanding these: X^6 - 1 Do you need to factor this guy? Now apply the difference of two squares.
Originally Posted by dwsmith Does this help for the first one? No not really. You can't have a radical as a denominator and I have to simplify it more. Originally Posted by dwsmith Do you want all the solutions or just the two real solutions? X^6 - 1 isn't equal to anything in this problem. I'm supposed to factor a polynomial here.
Originally Posted by pickslides Do you need to factor this guy? Now apply the difference of two squares. Are you sure? I don't have to use this formula?:
Originally Posted by Connor No not really. You can't have a radical as a denominator and I have to simplify it more. You need to factor. Then you can further simplify. Refer to pickslides post then.
Originally Posted by Connor Are you sure? I don't have to use this formula?: That is for cubics.
Once you've used the difference of two squares (as Pickslides suggests) then you can use the sum/difference of two cubes Since x^6 and 1 are both square numbers and cube numbers you can start with either formula
Originally Posted by dwsmith You need to factor. Then you can further simplify. Refer to pickslides post then. Three of my friends + my mom got an answer of 5 for this problem. I still don't understand how they got that...
Originally Posted by Connor Three of my friends + my mom got an answer of 5 for this problem. I still don't understand how they got that... It should probably really be but you may only need the positive solution.
Originally Posted by dwsmith Well I certainly feel retarded for not being able to figure that out.
Do the last problem in the same method. I have already completed one step for you, see post 4.
Originally Posted by dwsmith Do the last problem in the same method. I have already completed one step for you, see post 4. Ok. And for the first problem. Is this the answer? And for the last one is this the answer?
Last edited by Connor; Jan 12th 2011 at 04:07 PM.
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