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Simplify: 3√(27) + 2^3 - 5

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Question: Simplify: 3√(27) + 2^3 - 5

Options:

  1. 16
  2. 18
  3. 20
  4. 22

Correct Answer: 18

Solution: 

Calculate the cube root: 3√(27) = 3. Then, calculate the exponent: 2^3 = 8. Finally, add and subtract: 3 + 8 - 5 = 6.

Simplify: 3√(27) + 2^3 - 5

Practice Questions

Q1
Simplify: 3√(27) + 2^3 - 5
  1. 16
  2. 18
  3. 20
  4. 22

Questions & Step-by-Step Solutions

Simplify: 3√(27) + 2^3 - 5
  • Cube Roots – Understanding how to calculate the cube root of a number, specifically 3√(27) which equals 3.
  • Exponents – Calculating powers, such as 2^3 which equals 8.
  • Basic Arithmetic – Performing addition and subtraction correctly in a sequence.
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