#40 02.02 Polynomial Functions of Higher Degree

label Mathematics
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May 12th, 2015

g(t)=t^5-6t^3+9t

5.png 

from the graph you can see that x-intercepts are about 1.732=sqrt(3), 0 and -1.732=-sqrt(3)

t^5-6t^3+9t=0

t(t^4-6t^2+9)=0

t1=0 and t^4-6t^2+9=0   

               (t^2-3)=0

               t^2=3

               t2=sqrt(3) and  t3=-sqrt(3)

so, x-intercepts are similar in both cases.

May 12th, 2015

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