## anonymous one year ago When adding two numbers, such as 123 and 423, care is taken to first line them up and then add like digits. How does expanding this expression to [(1 × 102) + (2 × 101) + (3 × 100)] + [(4 × 102) + (2 × 101) + (3 × 100)] make the operation more like a polynomial addition problem?

1. anonymous

@dan815

2. anonymous

How does it make it like a polynomial expression problem

3. dan815

oh now I see omg

4. dan815

thats why i was getting*confused! those are exponent ofcourse

5. anonymous

ohh maybe an example of a polynomial expression problem will help

6. dan815

|dw:1435337338251:dw|

7. dan815

if you change the 10 to Xs

8. dan815

|dw:1435337431925:dw|

9. dan815

so you see how with polynomial addition

10. dan815

we always add the like terms or the same degree terms we cannot add numbers infront of x^2 to x

11. dan815

so you see how addition is very similiar to the same thing we do with polynomial addition?

12. anonymous

yeah I see now

13. dan815

theyre trying to show you how adding like terms is very similiar to the normal addition which we do already without thinking about it

14. anonymous

ok i get it now i was just confused onhow polynomial addition works

15. dan815

k good

16. dan815

and in the future use latex or put ^ infront of exponents like 10^2 and 10^1

17. anonymous

oh ok will do :)

18. dan815

you should learn latex now, its good to start early

19. dan815

|dw:1435337874001:dw|

20. dan815

use those symbols

21. dan815

$10^2$

22. dan815

$\int \frac{a}{b}dx e^x$

23. anonymous

first time learning that ok