BobbyJones
New member
- Joined
- Aug 15, 2011
- Messages
- 35
This question says the 7th degree polynomial x^7 - 3x^6 - 7x^4 + 21x^3 - 8x +24 has a factor of (x-3)
a) Divide x^7 - 3x^6 - 7x^4 + 21x^3 - 8x +24 bu x-3, and put in form (x-3)(ax^6+bx^3+c)
---I've done this part
b) By putting z = x^3, find all the factors, real or complex of the 6th degree polynomial and thus express x^7 - 3x^6 - 7x^4 + 21x^3 - 8x +24 as the product of seven linear factors.
----I've managed to find the real factors but cant find the Imaginary. Can someone show me how to work out the imaginary factors please.
Thankyou.
a) Divide x^7 - 3x^6 - 7x^4 + 21x^3 - 8x +24 bu x-3, and put in form (x-3)(ax^6+bx^3+c)
---I've done this part
b) By putting z = x^3, find all the factors, real or complex of the 6th degree polynomial and thus express x^7 - 3x^6 - 7x^4 + 21x^3 - 8x +24 as the product of seven linear factors.
----I've managed to find the real factors but cant find the Imaginary. Can someone show me how to work out the imaginary factors please.
Thankyou.