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Question: How do i check if my found root is correct

Question:How do i check if my found root is correct

tosynero 5 Maple
eval subs
March 30 2012
1

Check the correctness of the solution by substituting for all found roots.

This are my found roots:

a:=12+10x^4+7x^3-89x^2+65x

and i found my roots (e.g);

b:= -3.5666666666,1.238969999,5.7777777,8888888888

 
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