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2 votes
2 votes
What is
(-8 + √(-20) )/(24)?

User Christoph Winkler
by
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1 Answer

11 votes
11 votes

Answer:


\displaystyle (-4 + i√(5))/(12)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Algebra I

  • Factoring

Algebra II

  • Imaginary Numbers: √-1 = i

Explanation:

Step 1: Define


\displaystyle (-8 + √(-20))/(24)

Step 2: Simplify

  1. [Fraction] [√Radical] Factor:
    \displaystyle (-8 + √(-1)√(20))/(24)
  2. [Fraction] [√Radical] Evaluate:
    \displaystyle (-8 + i√(20))/(24)
  3. [Fraction] [√Radical] Simplify:
    \displaystyle (-8 + 2i√(5))/(24)
  4. [Fraction] Factor numerator:
    \displaystyle (2(-4 + i√(5)))/(24)
  5. [Fraction] Simplify:
    \displaystyle (-4 + i√(5))/(12)
User Ceil
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