14938135
14938135 14938135
  • 28-12-2021
  • Mathematics
contestada

Is x-2 a factor of 4x^5 +5x^4 +1?

Respuesta :

jimrgrant1 jimrgrant1
  • 28-12-2021

Answer:

No

Step-by-step explanation:

By the Factor theorem

If (x - h) is a factor of f(x) then f(h) = 0

Here (x - 2) with h = 2 and f(x) = 4[tex]x^{5}[/tex] + 5[tex]x^{4}[/tex] + 1 , then

f(2) = 4[tex](2)^{5}[/tex] + 5[tex](2)^{4}[/tex] + 1

     = 4(32) + 5(16) + 1

     = 128 + 80 + 1

     = 209

Since f(2) ≠ 0 then ( x - 2) is not a factor

 

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