Respuesta :
x^4-81= x^4+0x^3+0x^2+0x-81
! 1 0 0 0 -81
x+3→-3 ! -3 9 -27 81
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1 -3 9 -27 0
x^3-3x^2+9x-27
Answer: x^3-3x^2+9x-27
! 1 0 0 0 -81
x+3→-3 ! -3 9 -27 81
---------------------------------------
1 -3 9 -27 0
x^3-3x^2+9x-27
Answer: x^3-3x^2+9x-27
Answer:
x^3 + 3x^2 + 9x + 27
Step-by-step explanation:
Hope this helps!