Hi How would I factorise this: a^6 + b^6 I change it into a cubic so, (a^3)^2 + (b^3)^2 then ? And how would I fully factorise this: x^3 - 3x^2 - 4 Thanks!
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Originally Posted by classicstrings Hi How would I factorise this: a^6 + b^6 ... Hello, classicstring, I can't offer you a more systematic way to do your problem. I did a little bit trial and error and long division and found this product: Bye EB
Originally Posted by earboth Hello, classicstring, I can't offer you a more systematic way to do your problem. I did a little bit trial and error and long division and found this product: Bye EB Another way to do it will give you...
I just realised that I think it is like cubic expansion, just doubling the powers. Any ideas on this one? x^3 - 3x^2 - 4 I think there are two nonreal solns and one real one. Thanks!
Originally Posted by classicstrings I just realised that I think it is like cubic expansion, just doubling the powers. Elementry, my Dear classicstrings. Use, Thus,
Originally Posted by ThePerfectHacker Elementry, my Dear classicstrings. Use, Thus, I like your panache PerfectHacker, the explanation totally clears things up, - EDIT: yeah I was confused a bit as I had wrote Which is wrong! By any chance can you help me with factorising this one? x^3 - 3x^2 - 4
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