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motikmotik
2 years ago
7

Is (x+5) a factor of f(x)=x^3 - 4x^2 + 3x + 7? use either the remainder theorem or the factor theorem to explain your reasoning.

Mathematics
1 answer:
Rufina [12.5K]2 years ago
3 0

Answer:

No

Step-by-step explanation:

<u>Use synthetic division</u>

-5 | 1 -4  3   7

____<u>-5 45 -240</u>

     1 -9 48 | -233

Since the remainder is not 0, then x+5 is not a factor of the polynomial

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