math,correction,plz

Solve each of the following quadratic equations by completing the square.

Problem#22 sect. 10.2

x^2-6x-3=0

My answer I keep getting two different answers : I get these two everytime i do it differently.

I get : x= 3 +- radical(12) or x = 3+-2radical(3)

Problem #28 sect10.2
2x^2+10x+11=0

My answer i keepgetting two different answer i don't know which one is correct:

x = (-10+-radical(12))/(2(2))
or
x=-2.5+-0.5radical(3)

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math check please

    1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve

  2. Math

    Lesson 8: Systems of Linear and Quadratic Equations Check my work 1. Solve the system of equations. y = 2x^2 - 3 y = 3x - 1 a. no solution b. (-1/2, 5), (2, -5/2) c. (-1/2, -5/2), (2,5)*** d. (1/2, 5/2), (2, 5) 2.how many real

  3. Algebra

    1.Solve the system of equations. y = 2x^2 - 3 y = 3x - 1 a. no solution b. (-1/2, 5), (2, -5/2) c. (-1/2, -5/2), (2,5) d. (1/2, 5/2), (2, 5) 2.how many real number solutions does the equation have 0 = -3x^2 + x - 4 a. 0 b. 1 c. 2

  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. Algebra

    Which of the following statements is true? A. Any quadratic equation can be solved by completing the square. B. Completing the square always gives two distinct solutions. C. You can’t complete the square if there is no constant

  2. Math

    Consider the general quadratic equation ax^2 + bx + c = 0, where a is not equal to 0. Solve for x by completing the square.

  3. Algebra

    Use the quadratic formula to solve the equation. Give exact answers: 2x^2 -1 = 6x. The choices are: a) -3 + square root(7)/2, -3 - square root(7)/2 b) 3 + square root(11)/2, 3 - square root(11)/2 c) 3 + square root(7)/2, 3 -

  4. Algebra Question

    Quadratic equations can be solved by graphing, using the quadrat completing the square, and factoring. What are the pros and cons these methods? When might each method be most appropriate?

  1. linear systems

    The statement that is false is A. A system of quadratic-quadratic equations can have exactly one solution. B. A system of quadratic-quadratic equations has no solutions if the graphs do not intersect. C. It is impossible for a

  2. Algebra

    Solve the following quadratic equation by completing the square. Simplify the solutions and rationalize denominators, if necessary. x2 − 9x + 14 = 0

  3. Math

    solve the equation by completing the square round to da nearest hundred if nessesary. x^2 + 10x = 18 A -11.56, 1.56 B 11.56, 1.56 C -11.56, - 1.56 my answer D 11.56, -1.56 solve the equation by completing the square x^2 + 9x -14 =

  4. Algebra Quadratic Equations

    What are the pros and cons of completing the square as a way to solve quadradic equations?

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