SOLUTION: y=x^5-14x^3+49x, find all real zeros.

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Question 361888: y=x^5-14x^3+49x, find all real zeros.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
y=x%5E5-14x%5E3%2B49x
y=x%28x%5E4-14x%5E2%2B49%29
y=x%28x%5E2-7%29%5E2
Two solutions:
highlight%28x=0%29
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x%5E2-7=0
x%5E2=7
highlight%28x=0+%2B-+sqrt%287%29%29
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