anonymous
  • anonymous
Approximate the real number solution(s) to the polynomial function f(x) = x3 + 2x2 – 5x – 6 .
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
i really dont Know sorry
anonymous
  • anonymous
im taking a practice test on flvs right now and im so comfused. i read the lessons adn took notes, but nothigs helping. im about to google it grrr
anonymous
  • anonymous
f(x) factorises to (x+1)(x+3)(x-2), can you solve the equation now?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
i think so. you set each set of parenthesis equal to zero adn solve right?
anonymous
  • anonymous
correct, so you should get x = -1, -3, 2
anonymous
  • anonymous
when f(x) = 0 that is
anonymous
  • anonymous
thank you sooooooo much!!!!!!
Hero
  • Hero
I don't like these kind of questions because it doesn't necessarily say that f(x) = 0. In my opinion, it should be interpreted as: input a value for f(x) such as x =0,1,2 and simplify the right side: f(0) = (0)^3 + 2(0)^2 + 5(0) - 6 f(1) = (1)^3 + 2(1)^2 + 5(1) - 6 f(2) = (2)^3 +2*(2)^2-5(2) - 6
anonymous
  • anonymous
i know i dont like these questions either. actually im not real big on algebra. but i love geometry. :)
Shayaan_Mustafa
  • Shayaan_Mustafa
No. Hero is wrong. to find out solution we have to set the function equal to zero and solve for x, then we could find three answers of x. Regards, Electronics engineer.
anonymous
  • anonymous
thank you. i already did the assignment with his answer though and im not sure if i got it right or not.
Hero
  • Hero
Shayaan, it doesn't matter whether I'm right or wrong. I'm expressing the fact that the question never suggests to set f(x) = 0. It says to find the solutions to f(x) = x3 + 2x2 – 5x – 6 You cannot legitimately argue against what I have posted as a solution to f(x) = x3 + 2x2 – 5x – 6 because by definition, a solution to an equality involving a variable is the variable that makes both sides of the equation equal. With that being the case, I can justify that f(0) = (0)^3 + 2(0)^2 + 5(0) - 6 f(1) = (1)^3 + 2(1)^2 + 5(1) - 6 f(2) = (2)^3 +2*(2)^2-5(2) - 6 f(n) = (n)^3 - 2(n)^2 - 5(n) - 6 and really, you can't make a legitimate argument against it whether you're an electronics engineer, a teacher, math professor, or a farmer. The solution I have written by the properties of equality and definition of a function suggest that my solution is also correct.
anonymous
  • anonymous
honestly i wouldnt know if you are right or wrong but when my assignment gets graded. ill let you know. i can always talk to my teacher abotu this but shes not online. ill try to get back to you.
Hero
  • Hero
I believe it's pretty immature for anyone to outright suggest that my solution is wrong without justification.
Hero
  • Hero
That also includes your teacher shayna. :) If she says it is wrong, she also has to justify why.
anonymous
  • anonymous
oh i know. i just havent spoken to her about it yet. she usually tels me how to solve the problem and i would have told you what she said. im pretty sure you were right though.
Hero
  • Hero
Well, I wouldn't say that I'm 100% right, however, I'm definitely not wrong.
anonymous
  • anonymous
lol
Shayaan_Mustafa
  • Shayaan_Mustafa
Here I want to say some thing. Hero is still wrong. As Hero said,"Shayaan, it doesn't matter whether I'm right or wrong. I'm expressing the fact that the question never suggests to set f(x) = 0. It says to find the solutions to f(x) = x3 + 2x2 – 5x – 6." Now it is a matter that you are doing wrong or right and also this question suggest whether to keep f(x)=0 or not. Don't you know how? Regards, Electronics Engineer.

Looking for something else?

Not the answer you are looking for? Search for more explanations.