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Identify the remainder when (x3 − 6x2 − 42x + 79) is divided by (x + 5).

A. 7 B. 11 C. 13 D. 14

User Goutam Pal
by
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2 Answers

6 votes
Use synthetic division. -5 in the corner, and then the terms 1 -6 -42 and 79. 
User John Kuriakose
by
8.0k points
4 votes

Answer: D. 14

Explanation:

Use synthetic division.


x^2
-11x
+13


x+5√(x^3-6x^2-42x+79)


-x^2-5x^2


-11x^2-42x


+11x^2+55x


13x+79


-13x-65


14 = the remainder

User Prasannjit
by
8.1k points
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