SOLUTION: Please help me find the real zeros of this function: {{{ x^4-16x^2-40x-25}}}

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Question 905635: Please help me find the real zeros of this function: +x%5E4-16x%5E2-40x-25
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Try the factors of 25.
-25, -5, -1, 1, 5, 25