+0  
 
0
316
2
avatar+1489 

Bart uses the factor theorem to determine whether  x−4 is a factor of 3x^4−10x^3+11x−172 .

How does he proceed to the correct answer?

Bart evaluates  3x^4−10x^3+11x−172 when x = 4. He determines that the value of the expression is 1192, and concludes that  x−4 is a factor.

Bart evaluates  3x^4−10x^3+11x−172 when x=−4 . He determines that the value of the expression is 1192, and concludes that  x−4 is not a factor.

Bart evaluates  3x^4−10x^3+11x−172 when x=−4 . He determines that the value of the expression is 0, and concludes that  x−4 is a factor.

Bart evaluates  3x^4−10x^3+11x−172 when x = 4. He determines that the value of the expression is 0, and concludes that  x−4 is a factor.

 

i think it is C?

 Aug 16, 2019
 #1
avatar+6046 
+3

D

 

(x-4) as a factor corresponds to the zero being at x=4

 Aug 16, 2019
 #2
avatar+1489 
+1

oh okay i see my mistake , thank you can you double check a few more

 Aug 16, 2019

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