Apply division algorithm to find the quotient $q(x)$ and remainder $r(x)$ on dividing $f(x)$ by $g(x)$ in the following:
$f(x)\ =\ 10x^4\ +\ 17x^3\ –\ 62x^2\ +\ 30x\ –\ 3,\ g(x)\ =\ 2x^2\ +\ 7x\ +\ 1$


Given:


$f(x)\ =\ 10x^4\ +\ 17x^3\ –\ 62x^2\ +\ 30x\ –\ 3$ and $g(x)\ =\ 2x^2\ +\ 7x\ +\ 1$.


To do:


We have to find the quotient $q(x)$ and remainder $r(x)$ on dividing $f(x)$ by $g(x)$.


Solution:


Dividend$f(x)\ =\ 10x^4\ +\ 17x^3\ –\ 62x^2\ +\ 30x\ –\ 3$

Divisor$g(x)\ =\ 2x^2\ +\ 7x\ +\ 1$

$2x^2+7x+1$)$10x^4+17x^3-62x^2+30x-3$($5x^2-9x-2$

                          $10x^4+35x^3+5x^2$

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

                                       $-18x^3-67x^2+30x-3$

                                       $-18x^3-63x^2-9x$

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

                                                     $-4x^2+39x-3$

                                                     $-4x^2-14x-2$

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

                                                                 $53x-1$

Therefore,

$q(x)=5x^2-9x-2$.

$r(x)=53x-1$.

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Updated on: 10-Oct-2022

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