Question

In the previous question, if b is nonzero, what can be said about $(4–3^b)$?

• A. It is always even
• B. It is always odd
• C. It can be either odd or even
• D. It is equal to 0

Answer 1

The correct option is B

It is always odd

Since b is nonzero, $3^b$ is odd. An odd number subtracted from an even number gives an odd number.