College Algebra

Solve 2x(squared)-3x-2=0 using the quadratic formula. Can someone explain this to me please?

  1. 👍 0
  2. 👎 0
  3. 👁 180
  1. match
    2x^2 - 3x - 2 = 0 with
    ax^2 + bx + c = 0

    so a=2, b=-3, c=-2

    the formula says

    x = (-b ±√(b^2 - 4ac))/(2a)

    substitute the above values and simplify

    (did you get x=2, x=-1/2 ?)

    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. 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.

  3. algebra

    Unit 4: Quadratic Functions and Equations Lesson 6: The Quadratic Formula and the Discriminant 1.) a=5, b=9, c=-4 2.) C 3.) No solution 4.) x=-2, x=1.25 5.) x=-9, x=3 6.) quadratic formula 7.) 2 8.) 11cm by 16cm

  4. Algebra

    What method(s) would you choose to solve the equation? Explain your reasoning. 4x^2-48=0 a. Quadratic formula, graphing; the equation cannot be factored easily since the numbers are large. Selected:b. Square roots; there is no

  1. Math

    a) Explain the relationship between the axis of symmetry and the quadratic formula. b) We know that the quadratic formula can be used to determine the roots of a quadratic function. However, the quadratic formula also reveals how

  2. Algebra

    Solve for "x" using the quadratic formula: X^2-4x-21=0

  3. algebra1

    what formula should i use to solve this quadratic formula? 2x2 + 4x + 2 = 0.

  4. Algebra2

    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 help

    write the quadratic equation whose roots are -4 and -5 and whose leading coefficient is 5 use the letter x to represent the variable. use the quadratic formula to solve for x 4x^2-9x+3=0

  2. algebra

    Solve the quadratic equation: 2x(squared)+6x+12=0 I know you have to find two numbers that =24 (2 times 12) and have a sum of 6. But I can't think of any! Can someone please help? Use the quadratic. And this problem has no real

  3. Math

    Solve for the zeros of the function using the quadratic formula. 3x^2=-4x+6 I know what the quadratic formula is but when I put it into the formula I keep getting an error on the graphing calculator.

  4. algebra

    Solve this quadratic equation using the quadratic formula. x^2 + 8x - 5 = 0

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