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

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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

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+6180
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D

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

Aug 16, 2019
#2
+1690
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oh okay i see my mistake , thank you can you double check a few more

Aug 16, 2019