Final answer:
The expression 4x - 2y + 3 has three terms: '4x', '-2y', and '3', where '4x' and '-2y' contain variables and coefficients, and '3' is a constant.
Step-by-step explanation:
The expression provided, 4x - 2y + 3, consists of three terms. A term in algebra is a single mathematical expression that may include a number, a variable, or the product or quotient of numbers and variables. In this case, the first term is '4x', which is the product of the number 4 and the variable x. The second term is '-2y', which is the product of the number -2 and the variable y. The third term is simply the number '3', which is known as a constant because it does not contain any variables.