Mathematics for IGCSE & O level - Indices 2 (Section 2 - No. 5) | ExamPlay

Mathematics for IGCSE & O level - Indices 2 (Section 2 - No. 5)

If 2^x = 0.25, what is x?

-2

-1

1

2

Explanation

0.25 = 1/4 = 1/2² = 2^-2, thus x = -2.

Comments (0)

Advertisement