# A bug or not in Equation solver?

Posted 2 months ago
442 Views
|
2 Replies
|
1 Total Likes
|
 In[6]:= Solve[-3 (y - 2)^(4/5) + 29 == -19, y, Integers] Out[6]= {{y -> 34}} There is another root for above equation that is y -> -30. But the software only display one root. Is it a bug?
2 Replies
Sort By:
Posted 2 months ago
 You can use Surd to also get the negative real root: Solve[-3 Surd[(y - 2)^4, 5] + 29 == -19, y] (* {{y -> -30}, {y -> 34}} *) As an alternative the equation can be rewritten: Solve[-3 ((y - 2)^4)^(1/5) + 29 == -19, y, Integers] (* {{y -> -30}, {y -> 34}} *)