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UPCAT Mathematics practice question 43: Solve for x: 2^(x + 1) = 32

Correct answer

A. x = 4

Write 32 as 2⁵. With matching bases, x + 1 = 5, so x = 4.

Solve for x: 2^(x + 1) = 32

  1. x = 4Correct
  2. x = 3
  3. x = 5
  4. x = 16

Why A is correct

Write 32 as 2⁵. With matching bases, x + 1 = 5, so x = 4.

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