Solve .

Answer and explanation

Correct answer: D. or

  1. Step 1: Look for two numbers with sum 8 and product 15; they are 3 and 5. Step 2. So . **Answer: or . Why not the others:** The negative pair has sum , the pair has product 12, and the pair has sum 16.

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Solve x 2 - 8x + 15 = 0. | Brandos Atestatas (Lithuania)