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OpenStudy (rayford):
Which of the following is the expansion of (x + 3)5? x5 + 5x4 + 10x3 + 10x2 + 5x + 1 x5 + 3x4 + 9x3 + 27x2 + 81x + 243 x5 + 15x4 + 90x3 + 270x2 + 405x + 243 None of the above
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OpenStudy (anonymous):
are you familiar with binomial series expansion ?
OpenStudy (rayford):
i have heard of it but i just wanted to know if i was correct and if not could you explain... i chose none of the above.
OpenStudy (rayford):
was i correct?
OpenStudy (anonymous):
nopes!
OpenStudy (anonymous):
x5 + 15x4 + 90x3 + 270x2 + 405x + 243 is correct !
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OpenStudy (rayford):
thanks man! i will def study :)
OpenStudy (anonymous):
yw:)
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