Posted by **sue** on Friday, December 9, 2011 at 4:53pm.

find all complex zeros for the following polynomial function please show all your work

f(x) = x^3 - 125

????????

- algebra -
**Reiny**, Friday, December 9, 2011 at 6:55pm
we have a difference of cubes

x^3 - 125 = (x-5)(x^2 + 5x + 25)

the quadratic has complex roots of

x = (-5 ± √-75)/2

= (-5 ± 5√-3)/2

= (-5 ± 5√3 i )/2

- algebra -
**sue**, Sunday, December 11, 2011 at 1:39pm
what does the question mark mean????

- algebra -
**Anonymous**, Wednesday, January 6, 2016 at 10:51pm
On Monday 222 students went on a trip to the zoo all 4 buses where in each bus

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