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+1
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avatar+319 

Simplify the expression  using long division. Show your work.

SamJones  Feb 7, 2018
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 #1
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[x - 4 ]| = x^2 - x +  3 [Quotient]

x^3 | - | 5 x^2 | + | 7 x | - | 12

x^3 | - | 4 x^2 | | | |

               -x^2 | + | 7 x | |

               -x^2 | + | 4 x | |

                             3 x | - | 12              

                             3 x | - | 12

                                     0

Guest Feb 7, 2018
 #2
avatar+82944 
+1

We can do this with synthetic division

 

4   [  1     - 5     7     -12   ]

                 4    -4      12

        _________________

        1     -1      3       0

 

 

The remaining polynomial  is   x^2 - x  + 3

 

 

 

cool cool cool

CPhill  Feb 7, 2018

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