SOLUTION: use synthetic division 3x^3 - 15x^2 -42x / (x + 2)

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Question 747975: use synthetic division
3x^3 - 15x^2 -42x / (x + 2)

Answer by josgarithmetic(39625)   (Show Source): You can put this solution on YOUR website!
..........
First, factor this, and then you have a simpler dividend to use.


Now, you would do the division of , and then put back your factor of 3x.

The root being tested would be -2, so set up the synthetic div.

-2____|____1____-5____-14
______|
______|_________-2_____14
___________________________
___________1____-7_____0 Remainder is 0

This means, QUOTIENT IS , or . According to the original expression to be divided, the quotient of that would be

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