Multiple choice

What approximate value will come in place of the question mark (?) in the following questions? (8^{1.38} \times 8^{1.62} = ?)

  1. 680

  2. 216

  3. 726

  4. 512

  5. 134
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Using exponent rule: 8^1.38 × 8^1.62 = 8^(1.38+1.62) = 8^3 = 512. When multiplying powers with the same base, add the exponents. 8³ = 512.

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