Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (thomasfire55):

Divide the following polynomial using synthetic division, then place the answer in the proper location on the grid. Write answer in descending powers of x. (x^3 -4x^2 +4x-1)÷(x-1)

OpenStudy (thatonegirl_):

Do you know how to do synthetic division?

OpenStudy (thomasfire55):

not really

OpenStudy (thatonegirl_):

https://youtu.be/1byR9UEQJN0 you can watch this video that explains it well, or would you like me to try to explain it?

OpenStudy (thomasfire55):

honestly id rather you try to explainit

OpenStudy (thatonegirl_):

Okay so first you need to know what the set-up looks like, it's different than normal long division.

OpenStudy (thatonegirl_):

|dw:1466537213682:dw|

OpenStudy (thatonegirl_):

So to start, what are you dividing by?

OpenStudy (thomasfire55):

x-1

OpenStudy (thatonegirl_):

Yup. So when you solve that, what is x equal to?

OpenStudy (thatonegirl_):

x-1=0

OpenStudy (thomasfire55):

1

OpenStudy (thatonegirl_):

Ok good. Always remember that when you plug that number in, you have to set the equation equal to 0 first. So then you can plug 1 in |dw:1466537403416:dw|

OpenStudy (thatonegirl_):

?

OpenStudy (thatonegirl_):

Then take ur polynomial and using the numbers in front of each variable write them along the top (without the x's)

OpenStudy (thomasfire55):

1,4,4?

OpenStudy (thatonegirl_):

Yeah, but don't forget the negative in front of that 4 and you also use the constant at the end. So when you write it all in it should look like: |dw:1466537622172:dw|

OpenStudy (thatonegirl_):

Does tht make sense so far?

OpenStudy (thomasfire55):

yea

OpenStudy (thatonegirl_):

Okay cool. So that's how you set it up. Then you're gonna drop the first number down.|dw:1466537777666:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!