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1 answer:
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For this case we must add the terms of the following expression:
It is noted that the terms are similar, so we can add:
We take common factor
We add the terms within the parenthesis:
finally we have:
Answer:
Synthetic division yields
-3 | 1 5 4 -6
. | -3 -6 6
- - - - - - - - - - - - -
. | 1 2 -2 0
which translates to
with remainder 0. Now by the quadratic formula,
and so