SOLUTION: t^3+125 could you help you with me with this problem please, is it prime.

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Question 247546: t^3+125 could you help you with me with this problem please, is it prime.
Answer by dabanfield(803) About Me  (Show Source):
You can put this solution on YOUR website!
t^3+125 could you help you with me with this problem please, is it prime.
Since t^3 and 125 are both perfect cubes t^3 + 125 is the sum of cubes.
We know in general that a^3+b^3 = (a+b)*(a^2- ab + b^2)
So in this case a=t and b=5.
t^3+125 is not prime.