Question

p(x)=x^4-13x^3+55x^2-91x
Solve the polynomial equation by finding all roots.
Please & thank you!

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

STEP

1

:

Equation at the end of step 1

 (((x4)-(13•(x3)))+(5•11x2))-91x

STEP  

2

:

Equation at the end of step

2

:

 (((x4) -  13x3) +  (5•11x2)) -  91x

STEP

3

:

STEP

4

:

Pulling out like terms

4.1     Pull out like factors :

  x4 - 13x3 + 55x2 - 91x  =  

 x • (x3 - 13x2 + 55x - 91)  

Checking for a perfect cube :

4.2    x3 - 13x2 + 55x - 91  is not a perfect cube