adv. alg.

list all roots of

1) x^5-3x^4+3x^3-x^2=0

2)8x^3-12x^2+6x-1

3) x^4=16

  1. 👍 0
  2. 👎 0
  3. 👁 125
asked by Kaleb
  1. Sorry, I don't remember how to do #1 and 2, but 3 is x=+-2

    1. 👍 0
    2. 👎 0
    posted by Jen
  2. Finding roots of Eqs that are 3rd degree or higher is done mostly by trial and error.However, Excel Spread sheets made the task a little easier.

    First, we find a number that will satisfy the given Eq. It was determined
    that 0 and 1 were the only numbers that
    satisfied your Eq. so the roots are:

    1. x = 0, and x = 1.

    2. I found only one root for this one:
    X = 0.50.

    3. X^4 = 16.
    Take sqrt of both sides:
    X^2 = 4,
    Take sqrt of both sides and get:
    x = +- 2.

    1. 👍 0
    2. 👎 0
    posted by Henry

Respond to this Question

First Name

Your Response

Similar Questions

  1. Calculus

    Q.a.Find the stationary points on the graph of y=12x+3x^2-2x^3 and sketch the curve. b.How does your sketch show that the equation 12x+3x^2-2x^3 =0 has exactly three real roots. c.Use your graph to show that the eequation

    asked by Raj on December 1, 2019
  2. math

    I HAVE THESE ANSWERS FOR THE PROBLEMS. COULD YOU DOUBLE CHECK PLEASE, THIS IS A PRACTICE QUIZ WHICH ISN'T A GRADE IT JUST HELPS ME GET READY FOR THE TEST. 1) a 2) b 3) d 4) a 5) d 1. Solve x^3 + 6x^2 + 13x + 10 = 0. a) –2 + 2i,

    asked by cal on October 7, 2008
  3. math

    Could you please solve so I can double check my answers for the practice quiz? Thank You!! 1. Solve x^3 + 6x^2 + 13x + 10 = 0. a) –2 + 2i, –2 –2i, –2 b) 2 + i, 2 – i, –2 c) –2 + i, –2 – i, –2 d) 2 + 2i, 2 –

    asked by cal on October 7, 2008
  4. Alegbra 2

    Use the rational root theorem to list all possible rational roots for the equation. X^3+2x-9=0. Use the rational root theorem to list all possible rational roots for the equation. 3X^3+9x-6=0. A polynomial function P(x) with

    asked by Chelsey on January 26, 2018
  5. algebra

    find a third degree polynomial equation with coefficients that has roots -4 and 6+i possible answers x^3-8x^2-11x+148=0 x^3-8x^2-12x+37=0 x^3-12x^2+37x=0 x^3-8x^2-11x=0

    asked by jayson on November 12, 2012
  6. Alg II

    I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I

    asked by Josh on January 20, 2010
  7. Alg II

    I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I

    asked by Josh on January 20, 2010
  8. Algebra: Steve

    I already asked this question,I just wanted to clarify the answer. Problem: The polynomial f(x) has degree 3. If f(-1)=15, f(0)=0, f(1)=-5, f(2)=12, then what are the x-intercepts of the graph of f? Steve: clearly, f(0) = 0 so,

    asked by Trish Goal on November 15, 2014
  9. math

    what are the roots of -12x^2-x^3+x^4?

    asked by Tameka on August 19, 2015
  10. math

    what are the roots of x^3+6x^2+12x+8?

    asked by Tameka on August 19, 2015

More Similar Questions