Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

factorise x^3-x^2-5x-3=o

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

i usually attempt this type of question by trial and error. Usually my choice of guess is range from -3 to 3. Since, using x=3 is one of the factor, it help reduce the equation to this form; x^2 + 2x +1. you can solve the above equation using quadratic formula; x^3-x^2-5x-3 = (x-3)(x^2 + 2x + 1) = (x-3)(x-1)^2

OpenStudy (anonymous):

to find a root you could use newton's method: x(n+1) = x(n) - f(x(n))/f'(x(n)) if you have a ti calculator try this: 2->x enter x - (x^3-x^2-5x-3)/(3x^2-2x-5) -> x enter (5 times) you should see it approach 3. This is a good way if you can't really think of a root but have a calculator. Then proceed by division as kenius describes.

OpenStudy (anonymous):

where "->" is the "sto>" button

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!

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

Latest Questions

DreamingWitch:
What is the fastest way to find a mixed number +/- another mixed number? (ik this

2 minutes ago
0 Replies
0 Medals

luvvdani1516:
Can someone please explain how I figure this out? (ss in comments)

55 seconds ago
7 Replies
0 Medals

KyledaGreat:
Jessie recently drove to visit her parents who live 120 miles away. On her way there her average speed was 14 miles per hour faster than on her way home (sh

15 minutes ago
8 Replies
0 Medals

polywog:
i have hw for slope-intercept form nd i dont know where to start, the first quest

37 minutes ago
9 Replies
0 Medals

Nerdyhuman:
Can anyone help me finish a children's story/ edit it and make it sound good?

27 minutes ago
7 Replies
1 Medal

MochaBerries:
um i have a few questions- 1~ what exactly is a black hole and what could possibl

37 minutes ago
25 Replies
3 Medals

celmatesusahh:
Part 1: Celebration! You and three friends will be going out to eat at your favorite restaurant! Each of you will order three items of your choice.

1 hour ago
5 Replies
0 Medals

dukedadon:
What is the rational number equivalent to 3 point 24 with a bar over 24?

1 hour ago
5 Replies
3 Medals

Sailor:
This is a attempt at a background I made for my computer what do ya think? *Pleas

2 hours ago
17 Replies
2 Medals