Posted by Jacob on Friday, December 16, 2011 at 8:51pm.
If x^3 = 1 and x does not equal 1, x(x+1)= ?

Calculus  bobpursley, Friday, December 16, 2011 at 9:03pm
Do it in polar:
x^3=1@0=1@360= 1@720
x= 1@0 not allowed in the problem statement
other solutions...
x= 1@120= 1cos120+i*sin120=you do it.
x=1@240=1cos240+i*sin240= you do it.
now, with the last two, solve for x(x+1)
have fun.
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