A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Using synthetic division, what is the quotient: (x3 + 7x2 + 5x – 20) ÷ (x + 3) ?
anonymous
 4 years ago
Using synthetic division, what is the quotient: (x3 + 7x2 + 5x – 20) ÷ (x + 3) ?

This Question is Closed

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1the quotient is what you end up with on the bottom i beleive

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1if your asking how to DO synthD thats a different can of worms

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2How do you do that amistre?

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1the first thing I do is make sure I got all the exponents; you need a complete set in order to perform it proerly; any missing parts get zeroed out this is good tho: 3,2,1,0 is all there so strip the coeffs and their signs and put them in a row

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2I was reading it on wikipedia but i didn't get it :(

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1c1 c2 c3 c4 next we want a row that we will fill in to add these coeffs too; and start it with a 0 c1 c2 c3 c4 0  <this next row we will fill in with the sums from the top and multiply them to our "root" c1 c2 c3 c4 0  r ) c1 then we just follow thru like a synthD machine c1 c2 c3 c4 0 rc1 r(rc1+c2) r(r(rc1+c2)+c3)  r ) c1 rc1+c2 r(rc1+c2)+c3 with any luck this is a 0 on the end, otherwise its the remainder the under side there is our quotient

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1the quotient is one degree less that what we started with; in this case we drop from x^3 to x^2

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2this is too complicated...long division method is better _

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1its complicated to expalin, its simple to do :)

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1you do all the parts of longhand ... so its not any more complicated, in fact its a smidge simpler

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1try it out, write out the coeffs in a row for me

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2dw:1331733759955:dw

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1then the next row is our addings; start it with a zero and underscore the whole thing

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1331733747724:dw

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2i didn't get smth tht ''r'' wht is it????

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1our "root" is going to be from the (x3) = 0 part; our root is when x=3 so instead of subtracting our result as in longhand, we already take care of that by swapping signs from 3 to 3 and then add. root here = 3

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1331733866830:dw

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2ahhhhhhhhhhhaaaaaaaaaaaaaaaa

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2dw:1331733984298:dw

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1add the first column .. 1+0 = 1 multiply that by 3 and add it to the next column ...

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1dw:1331733984083:dw

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1we have a remainder left over; but the quotient is still the same; all the numbers up to the last column

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2dw:1331734110667:dw

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1x3 + 7x2 + 5x – 20 ; opps, our divider is (x+3) :) so root is 3 lol x3 + 7x2 + 5x – 20 0 3 12 21  3) 1 4 7 R=1

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1so, quotient is: x^2 +4x 7

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2Ohhhh......Thaaaaaaaaaaaaaaaaaaaaaanks a looooooooooooot Amistre :))))))))))))))))))))

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.1since the variables dont actually play into the process, they strip them; but i find it rather pointless to say they HAVE to not be there; it leads to confusion alot i think

angela210793
 4 years ago
Best ResponseYou've already chosen the best response.2Thanks :) for teaching me :)))) (even though i don't think I'll use it very often) :D Thank you :)))
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.