Will medal and fan for correct answer!

Divide: (x^2-10x+30)/(x-5)

Question

Will medal and fan for correct answer!

Divide: (x^2-10x+30)/(x-5)

mathmale · Answer

Please do NOT ask for answers.  Instead, share your thoughts, and your own work, so there's something a helper can give you feedback on.

You are asked to divide (x-5) into (x^2-10x+30).  This is called "long division."  How would you set up this long division?  How would you then start this long division?

blehh10 · Answer

I'm not asking for answers, I'm asking for help GETTING the answer because I don't know how to solve.

blehh10 · Answer

@Rebecca

sshayer · Answer

do you know the procedure of long division ?

blehh10 · Answer

Yeah, 
       __________
x-5/ x^2-10x+30

sshayer · Answer

|dw:1464022211288:dw|

sshayer · Answer

then divide

blehh10 · Answer

How did you get that? Could you walk me through?

sshayer · Answer

let us start together
$$x \times ?=x^2$$
what should i write at ? ?

blehh10 · Answer

x

sshayer · Answer

multiply x-5 by x

blehh10 · Answer

x^2-5 why do I multiply?

sshayer · Answer

just like we do in normal division,we multiply
difference here is we always try to make first term equal.

sshayer · Answer

what do you get after multiplying ?

blehh10 · Answer

@rebeccaxhawaii

rebeccaxhawaii · Answer

Ever heard of synthetic division?

blehh10 · Answer

No. What is it?