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Find the term containing [tex]x^{20}[/tex] in [tex](2x - x^4)^{14}[/tex].
I went [tex]t_{k+1}= _{14}C_{k}(2x)^{14-k}(-x^{4})^{k}[/tex]
[tex]= 2x^{14-k}(-x^{4k})[/tex]
First of all, am I on the right track? If so what exactly do I do from there?
I went [tex]t_{k+1}= _{14}C_{k}(2x)^{14-k}(-x^{4})^{k}[/tex]
[tex]= 2x^{14-k}(-x^{4k})[/tex]
First of all, am I on the right track? If so what exactly do I do from there?