Simplify the rational expression for all valid .

Answer and explanation

Correct answer: C.

  1. Step 1: Factor numerator: .
  2. Step 2: Factor denominator: .
  3. Step 3: Cancel common factor : .
Answer
\frac{x - 3}{x + 2}.
Why not the others: '' cancels incorrectly; '' cancels instead of ; '' cancels illegally across addition.

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Simplify the rational… | Egyptian Scholastic Test (EST)