Question

10. Which correctly describes the roots of the following cubic equation?
x^3-3x^2+4x-12=0

11. What is the second term of (s+v)^5?

Answer 1

http://openstudy.com/study#/updates/5283a76be4b06a94e494061f

Answer 2

Unfortunately, the answer given a year ago is wrong.

Answer 3

How many real roots do you see. Looks like one to me.

Answer 4

Yea I see 1

Answer 5

So your factors are:\[(x ^{2}+4)(x-3)\] So the real root is x=3 the other two roots while be imaginary.

\[x ^{2}=-4\]\[x=\sqrt{-4}\]

Answer 6

So the answer is one real root and two complex roots.

Answer 7

Thank you! :)

Answer 8

yw