Help solve 4x^3-12x^2-x+3=0?
1) how many roots?
2) possible number of positive roots?
3) possible number of negative roots?
4) list all possible rational roots?
5) solve the equation.

pretty pretty please!!!

Also: Solve the equation x^3-8x^2+21x-20=0 given that one of the roots is 2+i

Question

Help solve 4x^3-12x^2-x+3=0?
1) how many roots?
2) possible number of positive roots?
3) possible number of negative roots?
4) list all possible rational roots?
5) solve the equation.

pretty pretty please!!!

Also: Solve the equation x^3-8x^2+21x-20=0 given that one of the roots is 2+i

aravindg · Answer

did you try factorising ?

anonymous · Answer

Fundy Theo of Algebra says 3 roots. =)

anonymous · Answer

did you try pirating matlab

anonymous · Answer

Rational root theorem?

anonymous · Answer

i dont know what any of that is!

anonymous · Answer

I got 1,2, and 3, so i only need 4, 5, and the bottom question