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Word problem
Really need help with this, and by end of day today would be best

The total imports of petroleum ( in millions of barrels per day) in a given year is approximated by the polynomial 40x^3 -526x^2+2089x+6056, where x represents the number of years since 1975. The corresponding total of exports of petroleum is -x^3 +13x^2 +29x+189. Write a polynomial that represents how many more barrels per day were imported than exported in a given year.

Respuesta :

What your going to do is multiply the numbers and get your answer and multiply them all by 2.
In this question, you are given the polynomial of the import (40x^3 -526x^2+2089x+6056) and the export (-x^3 +13x^2 +29x+189). You are asked the difference between import and export. Then you need to subtract the export value from import value. The calculation would be:

40x^3 -526x^2+2089x+6056 - (-x^3 +13x^2 +29x+189)=
40x^3 -526x^2+2089x+6056 + x^3 -13x^2 - 29x -189=
41x^3 -539x^2+2060x+5867 

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