Ask Question
17 October, 17:47

Solve x^2+12=-11 by completing the square. Which is the solution of the equation

+3
Answers (1)
  1. 17 October, 18:55
    0
    x = square root of 23 i, x = - square root 23 i,

    Step-by-step explanation: x^2+12=-11

    Subtract 12 from both sides

    x^2+12 - 12 = - 11 - 12

    Simplify

    x^2 = - 23

    For x^2 = f (a) the solution are x = square root of F (a), - square root of f (a)

    x = square root of - 23, x = - square root of - 23

    Simplify square root of - 23: square root of 23

    square root of 24

    Apply radical rule: sqaure root of - a = square root of - 1 square root of a

    square root of - 23 = square root of - 1 square root of 23

    = square root of - 1 square root of 23

    Apply imaginary number rule: square root of - 1 = i

    = square root of 23i

    Simplify - square root of - 23 square root of 23

    -square root of - 23

    Simplify square root of-23 square root of 23i

    = - square root of23i

    x = square root of 23i, x = - square root of 23i
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Solve x^2+12=-11 by completing the square. Which is the solution of the equation ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers