Algebra

Which is the extraneous solution of -x=sq root of 2x+15?

A. -5
B. -3
C. 3
D. 5
I think it is D...?

  1. 👍 0
  2. 👎 0
  3. 👁 35
asked by Cassie
  1. you are correct

    if x = 5
    LS = -5
    RS = √(10+15) = √25 = 5 ≠ LS

    1. 👍 0
    2. 👎 0
    posted by Reiny

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    1) Solve the equation for p. Identify any extraneous solutions. √p=-1 A) -1 is a solution of the original equation. 1 is an extraneous solution. B) 1 is a solution of the original equation. C) 1 is a solution of the original

    asked by Tia on April 22, 2015
  2. Calculus

    1. Use the Mean Value Theorem to find an x-value where the instantaneous slope=average slope over the given interval: f(x)=(9-x^2)^(1/2) on [-3,2] I have done three chapters of Calculus already and I never have had to check for

    asked by Isabella on January 16, 2016
  3. algebra

    Using the equation below as a model, fill in numbers in the place of a and b to create a rational equation that has an extraneous solution. x+a/ax=b/x Part 1. Show all work to solve for x in the equation and check the solution.

    asked by rocky on June 9, 2016
  4. Algebra 2

    Is the solution to this rational expression extraneous? The problem: (2x-3)/7 -(7x)/14 My answer: x = -9/4 My teacher wants to know if the solution is extraneous and I know I have to plug my answer back into the expression to

    asked by Wade on October 7, 2015
  5. Precalculus

    Solve (log x)^2 = log x Also, when will their be a possibility that an equation will have an extraneous solution? Like if you got two solutions for a log equation, will a negative solution for x automatically be extraneous?

    asked by marcus on November 20, 2012
  6. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.

    asked by cheyanne on March 6, 2012
  7. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.

    asked by cheyanne on March 6, 2012
  8. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.

    asked by cheyanne on March 6, 2012
  9. math

    Solve. Check for extraneous solutions. 1) (/3x+7) = x-1 2) (3/2x)-3=9 Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.

    asked by cheyanne on March 6, 2012
  10. algebra

    1.)correct 2.)wrong---> the first term is wrong 4(3a^2)^2 = 36a^4 3.) not sure on this one 4.) wrong---> - square root of six is not a solution Hope this Helps! 1)find p(-3)if p(x)=4x^3-5x^2+7x-10 =-184 2)If r(x)=4x^2-3x+7,find

    asked by manny on August 16, 2007

More Similar Questions