f(x) = -x^3 + x^2 -x + 2?

Answer 1

I assume you want this factored?

Since it is cubic, I am going to be lazy and assume they do not really want to make me sweat too much over the problem. So, I am going to take a guess and say that x + 1 might be a root...

(-x³ + x² - x + 2) / (x + 1) = -x² + 3x + 2

Will you look at that... it divides. (If not, I would have tried x - 1... and if neither worked, I would have been rather irritated.)

So, now we have:
(x + 1)(-x² + 3x + 2)

Solve the quadratic:
x² - 3x - 2 = 0
x² - 3x = 2
x² - 3x + (3/2)² = (3/2)² + 2
(x - 3/2)² = (3/2)² + 2
(x - 1.5)² = 9/4 + 8/4
x - 1.5 = ± sqrt(17/4)
x = 3/2 ± sqrt(17)/2
x = (3 ± sqrt17)/2

Since I negated the quadratic equation in order to solve it, I have to negate one of the factors (does not matter which one), and the factored equation is:

-(x + 1)(x - 1.5 + 0.5sqrt17)(x - 1.5 - 0.5sqrt17)

Answer 2

high priced chum, AMD's processors are the 1st-fee wager. AMD is the processors leaders. besides Intel have made a blunder of their twin center processors. I strongly recommend which you basically pass in for the AMD. All AMD processors have not any below 1600Mhz FSB whilst in comparison with the 4 hundred of Intel's. Your Rig will would desire to be like this: AMD Athlon sixty 4 X2 3600+ Processor ASUS M2A-MVP MB 4*go beyond a million GB DDR2 666 Mhz RAM Seagate 250 GB SATA 2 HDD thank you...

Answer 3

-x^3+x^2-x+2=0=f(x)=0 ,factorise,-x^2(x-1)-x+2=0

Answer 4

Well, what about it?
Do you want the graph?
in another form?
solve for x? (I don't think you can)
Please specify your question.

Answer 5

hello kina!

what do you mean by this?

are you asking for the graph of this function? or

what/?

Answer 6

solve f(x) = 0?

Answer 7

well its a cubic with x-intercept of about 1.35321

what do you want?

Answer 8

What do you want to do with F(x)?

Answer 9

what do you want me to do with it

Answer 10

and...? what do you need to do with it