## lokiando one year ago Ms. Wilson draws a model of the factorization of a polynomial with integer factors. Her model is partially complete. Check screenshot to understand

1. lokiando

2. anonymous

this has to be one of the goofiest questions tonight i guess you are supposed to figure that one of the factors is $$n+5$$ from that table

3. lokiando

I am not a math geek

4. anonymous

the question is, what is the other factor since the last number is 40 then the missing number must be 8 right? since $$5\times 8=40$$

5. anonymous

with questions like this it is clear than no one is expecting to create a math geek for sure

6. anonymous

seems like the they are trying to create mind readers go with $(x+5)(x+8)$

7. lokiando

well the table seems to be uncomplete, thats my opinion

8. campbell_st

well to complete the table you need to finish the multiplications...this is the grid method for factoring or multiplying |dw:1438052784629:dw| use the infomration

9. campbell_st

|dw:1438052874483:dw| you need to find n x ?? = n^2 5 x ? = 40 they are the missing bits

10. campbell_st

|dw:1438052954675:dw|

11. lokiando

|dw:1438052986050:dw|

12. campbell_st

thats a great start now the top of the column so you get 40

13. lokiando

|dw:1438053296575:dw|

14. lokiando

$n^2 + 40n + 13 = (n + 8)(n + 5)$

15. lokiando

thank you, thank you very much

16. dan815

|dw:1438053799631:dw|