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drek231 [11]
3 years ago
8

Find the national root of x^4+3x^3+3x2-3x-4=0

Mathematics
1 answer:
ozzi3 years ago
5 0
Using a graphic tool.  
<span>see attached graphic</span>
<span>
the solutions are
x1=-2
x2=0.811

</span>check

for x=-2

x^4+3x^3+3x2-3x-4

(-2) ^4+3(-2) ^3+3(-2) ^2-4=16+(-24)+12-4=0   ok

For x=0.811

(0.811) ^4+3(0.811) ^3+3(0.811) ^2-4=0.4326+(1.6002)+1.9731-4=0   ok

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