SOLUTION: How many complex roots does 5x6 + x4 3 = 0 have? (Points : 4) 3 4 5 6 Question 10. 10. How many rational roots does x4 + 3x2 + 2 = 0 ha

Question 949232: How many complex roots does 5x6 + x4 3 = 0 have?
(Points : 4)
3
4
5
6

Question 10. 10. How many rational roots does x4 + 3x2 + 2 = 0 have?
(Points : 4)
0
1
2
4
Are these right

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
1)
How many complex roots does have

Using Descartes rule of signs,if you have there,then
Plugging in , it has

, so it has positive real root.
Plugging in , it also has

, so it also has real root.
Then, other four roots be .
so, answer is:
3)

it factors into so it has roots
answer is: rational roots

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