algebra

posted by .

When solving a rational equation, why is it necessary to perform a check?

  • algebra -

    If you mean something like
    x^2 = 25
    then x = +5 or x = -5
    only one of the two solutions may solve your original problem. Therefore you try them both in the original problem that led to x^2 = 25 to see if one or the other or both works.

  • algebra -

    Basically to see if the value found for x will yield the same answer on both sides of the equation.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    When solving a rational equation, why is it necessary to perform a check?
  2. ALGEBRA

    When solving a rational equation, why is it necessary to perform a check?
  3. algebra

    When solving a rational equation what is the first step we must always take?
  4. Math

    Why is it necessary to perform a check when solving rational equations?
  5. Algebra

    After solving a rational equation, why is it important to check your answer?
  6. algebra

    after solving a rational equation, why is it important to check your answer?
  7. Algebra

    I really need your help in solving this problem. I appreciate your time and efforts. Have a terrific day :) Here is the question: For each expression, perform the indicated operations and simplify, if possible. Solve each equation …
  8. college Algebra

    solving rational equation trying to figure out where i did wrong x/x-4 -4/x-5 = 4/x^2-9x +20 x/x-4 -4/x-5= 4/(x-4)(x-5) domain x not equal +- 4,5 x(x-4)(x-5)/x-4 - 4(x-4)(x-5)/x-5= 4(x-4)(x-5)/(x-4)(x-5) x(x-5)-4(x-4)=4 x^2-5x-4x+16=4 …
  9. Math

    How is solving a rational equation the same as solving any other equation?
  10. Math

    How is solving a rational equation different from solving linear equations like 3x+5=7x-2?

More Similar Questions