Simplify .

Answer and explanation

Correct answer: A. 8

  1. Step 1: and . Step 2. The sum is . Answer: 8. Why not the others: 15: That multiplies the logarithms. 256: That is the product of the numbers, not the logarithm of it. 2: That subtracts the logarithms.

Practise more Surds, indices and logarithms.

Free questions with an explanation for every one, and full timed Singapore GCE O-Level mock tests.

All Surds, indices and logarithms questionsTake a mock test

More Surds, indices and logarithms questions