horselover12 horselover12
  • 05-02-2015
  • Mathematics
Answered

Determine whether the binomial is a factor of f(x).

f(x) = x3 + 11x2 + 24x - 36; x - 4



Answer :

konrad509
konrad509 konrad509
  • 05-02-2015
If it is, then [tex]f(4)[/tex] would be equal [tex]0[/tex].

[tex]f(4)=4^3+11\cdot4^2+24\cdot4-36\\ f(4)=64+11\cdot16+96-36\\ f(4)=124+176\\ f(4)=300\not =0 \Rightarrow \text{ it isn't}[/tex]
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