The only properly constructed formula among the options is (D4*G*L#)
O=(B2+09): This formula is incorrect because it assigns the value of (B2+09) to the variable "O" without an equal sign (=) before the expression.
O=4+(V=14): This formula has two assignment statements within the same expression, which is not allowed. It should be either `O=4+V` or O=V=14` depending on the intended meaning.
O=G-)4(-3): This formula has an invalid operator (-) before the number 4. Operators should be used between operands, not directly before them.
(D4*G*L#): This formula uses valid operators and expressions within parentheses, making it the only correct option. The "#" at the end is likely a placeholder for another operation or value, but it doesn't affect the initial construction of the formula.
Therefore, the formula **(D4*G*L#)** is the only properly constructed one among the given options.