SOLUTION: Determine which binomial is not a factor of 4x^4-21x^3-46x^2+219x+180. The options are x+4, x+3, x-5, and 4x+3

Question 1010000: Determine which binomial is not a factor of 4x^4-21x^3-46x^2+219x+180. The options are x+4, x+3, x-5, and 4x+3
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
It's (x+4)
Synthetic division
-4 ;;; 4;;-21;;-46;;219;;180
====4;;-37+102;;-189;not zero
Alternatively, can do f(-4)=1024+1344-736-876+180, and that does not equal zero.

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