Find the sum of all real solutions of .

Answer and explanation

Correct answer: B. 5

  1. Step 1: Let : , so .
  2. Step 2: Then or , and the sum is .
Answer
5.
Why not the others: 18: that is the sum of the values of . 32: that is the product of the values of . 4: the product of the solutions is given.

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