Question

A real world problem would be using division of polynomials if the area of a rectangle is given for example: x^2+7x+12 and the length is given as (x+3), you want to find the width in terms of x you divide x^2 +7x+12 by x + 3 and you get x+4 as an answer by using the steps in division.

Is this answer right and how, please help thanks..

Answer 1

************ x
****________________
x+3 | x^2 + 7 x + 12
***** x^2 + 3 x
******----------
******* 0 + 4 x
then
************ x + 4
****________________
x+3 | x^2 + 7 x + 12
***** x^2 + 3 x
******----------
******* 0 + 4 x + 12 (bringing down the 12)
************4 x + 12
***********---------
************** R = 0

Answer 2

thank you, now I have a better understanding