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ClarisaSummar
ClarisaSummar ClarisaSummar
  • 23-07-2015
  • Mathematics
Answered

What is the remainder when (x3 − 7x2 − 18x + 42) is divided by (x + 3)?

Verified Answer :

naǫ
naǫ naǫ
  • 24-07-2015

Look at the picture.
The remainder is 6.

View image naǫ
Answer Link
jbiain jbiain
  • 07-11-2019

Answer:

6

Step-by-step explanation:

You can use Ruffini's rule to divide x^3 − 7x^2 − 18^x + 42 by x + 3 as follows
:

   | 1   -7   -18   | 42

-3 |     -3    30  | -36

--------------------------

   | 1   -10   12   |  6

Then (x^3 − 7x^2 − 18^x + 42) : (x + 3) = (x^2 - 10x +12)*(x + 3) + 6

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