maths

Form a quadratic equation in the form ax^2+bx+c=0 whose roots are b and twice the negative reciprocal of b.plz explain in detail

  1. 👍 0
  2. 👎 0
  3. 👁 335
  1. root1 = b
    root2 = -2/b
    so the quadratic is
    (x-b)(x + 2/b) = 0

    1. 👍 1
    2. 👎 0
    👨‍🏫
    oobleck
  2. Why is it x-b shldn't it be x+b

    1. 👍 0
    2. 👎 0
  3. If b is a root, then (x-b) is a factor, since (x-b) = 0 if x=b.

    1. 👍 1
    2. 👎 0
    👨‍🏫
    oobleck
  4. good answers

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra 2

    A quadratic equation can be written in vertex form or in standard form. Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task listed below and explain why a.

  2. 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

  3. math

    The point-slope form of the equation of the line that passes through (–5, –1) and (10, –7) is y plus 7 equals negative StartFraction 2 over 5 EndFraction left-parenthesis x minus 10 right-parenthesis.. What is the standard

  4. algebra 2

    a quadratic equation can be written in vertex form or in standard form. sometimes one form is more beneficial than the other. identify which form would be more helpful if you needed to do each task listed below and explain why. a.

  1. Math

    The graph of a quadratic function has vertex(3,-4) and passes through the point (4,1). Find the equation of the function in standard form. Rewrite the equation in general form. Could someone explain to me how to do this, just

  2. math

    the roots of 2x^2 - 3x = 4 are a and b. find the simplest quadratic equation which has roots 1/a and 1/b

  3. math

    which form of a quadratic funtion is easiest to use to find the maximum or minimum value of the function? satandard form factored form vertex form any form ***********

  4. algebra

    if a quadratic equation with real coefficents has a discriminant of 10, then what type of roots does it have? A-2 real, rational roots B-2 real, irrational roots C-1 real, irrational roots D-2 imaginary roots

  1. Precalculus

    "Show that x^6 - 7x^3 - 8 = 0 has a quadratic form. Then find the two real roots and the four imaginary roots of this equation." I used synthetic division to get the real roots 2 and -1, but I can't figure out how to get the

  2. math

    Algebraically analyze the graph of the function f(x)= -6x^2+5x+2 . Find the vertex, axis of symmetry, range, minimum or maximum value, increasing and decreasing intervals, and zeros. Write the Quadratic equation in standard form.

  3. mathematic

    . Form a quadratic equation in the form ax²+bx+c=0 whose roots are b and twice the negative reciprocal of b. (3mk)

  4. Math

    determine the value(s) of k which a quadratic equation x^2+kx+9=0 will have. a) two equal real roots b) 2 distinct roots I tried to find the discriminant but couldn't get the right answer

You can view more similar questions or ask a new question.